Ai giúp tôi câu này tôi sẽ tick cho
200 x 10
456 x 30
340 x 487
Những câu hỏi liên quan
cach lam bai toan 1+3+5+7+......+x=1600
ai giải giúp tôi tôi sẽ tick nhiều cho
1+3+5+7+...+x=1600(x thuộc N)
[(x-1):2+1].(x+1)/2=1600
(1/2.x-1/2+1).(x+1)=1600:1/2
(1/2.x-1/2+1).(x+1)=3200
(x+1)2.1/2=3200
(x+1)2=3200:1/2
(x+1)2=6400
x+1=80
x=80-1=79
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giải gúp tôi bài này với x+13/12+21/20+31/30+43/42+57/56+73/72+91/90
ai làm được tôi sẽ tích thật nhiều cho
\(x+\frac{13}{12}+\frac{21}{20}+...+\frac{91}{90}\)
\(=x+1+\frac{1}{12}+1+\frac{1}{20}+...+1+\frac{1}{90}\)
\(=x+\left(1+1+1+1+1+1+1\right)+\left(\frac{1}{12}+\frac{1}{20}+...+\frac{1}{90}\right)\)
\(=x+7+\left(\frac{1}{3.4}+\frac{1}{4.5}+...+\frac{1}{9.10}\right)\)
\(=x+7+\left(\frac{1}{3}-\frac{1}{4}+\frac{1}{4}-\frac{1}{5}+...+\frac{1}{9}-\frac{1}{10}\right)\)
\(=x+7+\left(\frac{1}{3}-\frac{1}{10}\right)\)
\(=x+7+\frac{7}{30}\)
\(=x+7\frac{7}{30}\)
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Tôi là Nguyễn Hữu Đa, năm nay tôi đã 70 tuổi rồi mà tôi vẫn chưa thấy câu hỏi nào như thế này. Cho tôi hỏi 1+1=?. Tôi sẽ không nói là tôi sẽ tick cho những ai trả lời sai :). Chúc làm bài thật tốt.
dạ chào oog cháu xin trả lời 1+1=....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................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1 + 1 = 2
Nội qui tham gia "Giúp tôi giải toán"
1. Không đưa câu hỏi linh tinh lên diễn đàn, chỉ đưa các bài mà mình không giải được hoặc các câu hỏi hay lên diễn đàn;
2. Không trả lời linh tinh, không phù hợp với nội dung câu hỏi trên diễn đàn.
3. Không "Đúng" vào các câu trả lời linh tinh nhằm gian lận điểm hỏi đáp.
Các bạn vi phạm 3 điều trên sẽ bị giáo viên của Online Math trừ hết điểm hỏi đáp, có thể bị khóa tài khoản hoặc bị cấm vĩnh viễn không đăng nhập vào trang web.
tôi là Trần Dần, nhà tiên tri vũ trụ, tôi có câu trả lời như sau :1+1=2 ok không cần cảm ơn chỉ cần k thôi
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{ ?? x ? + A } x A =123
??,?,A là bao nhiêu.Nếu bạn giúp tôi ,tôi sẽ tick vào cho bạn
123=3.41
vì ??x?+A>A
=>A=3
??.?=41-3=38
??=19,?=2
chúc học tốt
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Tìm số nguyên x biết:
a, ( x+1) - (x+2) - (x+3)= 24
b, 4x+2 - 3(x-1)= 3x-5
c, x-1-2(x-2)= x-11
d, 2(1-2x) - 3(1-x) =x+9
Các bạn giải hộ tôi câu d với! Tôi cần gấp lắm! Ai giải đúng tôi sẽ tick*****cho!*****
a,(x+1)-(x+2)-(x+3)=24
=>x+1-x-2-x-3 =24
=>(x-x-x)+(1-2-3) =24
=> -x-4 =24
=> -x =24+4
=> -x =28
=> x =-28
Vậy x=-28
b,4x+2-3(x-1)=3x-5
=>4x+2-3x+3=3x-5
=>3x-4x+3x =2+3+5
=>2x =10
=>x =5
Vậy x=5
c,x-1-2(x-2)=x-11
=>x-1-2x+4=x-11
=>x-2x-x =-11+1-4
=>-2x =-14
=>x =7
Vậy x = 7
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giúp tôi với ai làm dúng tôi tick cho
câu 1 x,y
a) (4x+4)(3y+1)=20
b )(x-1)(2y+10)=30
câu 2
a 7n chia (n-3)
b ) (3n+1) chia (n-1)
câu 3
cho abc . chứng minh rằng : (2a+3b+c ) chia 7
Các Bạn có biết Phạm Yến Vy người yêu của Hiroman x Jessica là ai ko nó là em gái ruột của tui nè
Nếu ai trả lời câu hỏi của tôi thì tôi sẽ tick cho người đó 3 like?
Thì là em ruột của bạn -_-, Hiroman x Jessica học trường nào thế?
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x + 1000 - 200 + 900 = 9000
~ k tôi thì tôi k lại ~
_Tôi sẽ ra 5 câu liên tiếp_
-Và k cho người xứng đáng-
x + 1000 - 200 + 900 = 9000
x = 9000 - 900 + 200 - 1000
x = 7300 ủng hộ mk nha
Thảo
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x + 1000 - 200 + 900 = 9000
x + 1000 - 200 = 9000 - 900
x + 1000 - 200 = 8100
x + 1000 = 8100 + 200
x + 1000 = 8300
x = 8300 - 1000
x = 7300
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x+1000-200+900=9000
x+1700 =9000
x=9000-1700
x=7300
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Xem thêm câu trả lời
ai giúp tôi câu này phát : Tìm giá trị ngyuên của x và y biết : 3x+3y+2xy=20
