Tim so tu nhien x biet:
a)(x+83)+(x+82)+...+x=4070
b)(x+1)+(x+2)+...+(x+10)=5750
chi tiet mk cho ****
Những câu hỏi liên quan
Cau 3 (2 diem). Tim so tu nhien x, biet:
a. 123 - x =38
b. (x+15) - 7 =33
c. 3x+3 - 13=230
`123-x=38`
`=> x= 123-38`
`=>x=85`
Vậy `x=85`
__
`(x+15) -7=33`
`=>x+15=33+7`
`=>x+16= 40`
`=>x=40-16`
`=>x=24`
Vậy `x=24`
__
`3^(x+3) -13=230`
`=> 3^(x+3) = 230+13`
`=>3^(x+3)=243`
`=> 3^(x+3)=3^5`
`=> x+3=5`
`=>x=5-3`
`=>x=2`
Vậy `x=2`
Đúng 1
Bình luận (0)
Tim so tu nhien x biet rang 493 chia het cho x va 10<x<100. (Ccac ban tra loi chi tiet luon nha. Minh dang can lam lam. Cam on cac ban nhieu)
giai
tim so tu nhien x biet 493 chia het x va 10 < x< 100 tuc la di tim x thuoc U(493) thoa man yeu cau 10 < x <100.
ta co : U(493) = { 1;17;29;493 }.
vay x = 17;29.
Đúng 0
Bình luận (0)
cac ban oi tra loi nhanh giup minh nha. huhu
Đúng 0
Bình luận (0)
tim x dua vao quan he uoc boi:tim so tu nhien x sao cho x-1 la uoc cua 12tim so tu nhien x sao cho 2x+1 la uoc cua 28tim so tu nhien x sao cho x+15 la boi cua x+3tim cac so nguyen x,y sao cho (x+1)(y-2)3tim so nguyen x sao cho(x+2).(y-1)2tim so nguyen to x vua la uoc cua 275 vua la uoc cua 180tim so nguyen to x,y biet x+y12 va UCLL (x:y)5tim so tu nhien x,y biet x+y32 va UCLL (x:y)8tim so tu nhien x biet x chia het cho10; xchia het cho12; x chia het cho15 va 100x150tim so x nho nhat khac 0b biet...
Đọc tiếp
tim x dua vao quan he uoc boi:
tim so tu nhien x sao cho x-1 la uoc cua 12
tim so tu nhien x sao cho 2x+1 la uoc cua 28
tim so tu nhien x sao cho x+15 la boi cua x+3
tim cac so nguyen x,y sao cho (x+1)(y-2)=3
tim so nguyen x sao cho(x+2).(y-1)=2
tim so nguyen to x vua la uoc cua 275 vua la uoc cua 180
tim so nguyen to x,y biet x+y=12 va UCLL (x:y)=5
tim so tu nhien x,y biet x+y=32 va UCLL (x:y)=8
tim so tu nhien x biet x chia het cho10; xchia het cho12; x chia het cho15 va 100<x<150
tim so x nho nhat khac 0b biet x chia het cho 24 va 30
40 chia het cho x . 56 chia het cho x va x>6
Bai 1. 12 chia het ( x + 3 )
bai 2. Tim so tu nhien x, biet 6x + 4 chia het cho 2x
cac ban nho giai chi tiet giup minh nha cam on
tim so tu nhien x,biet (x+1) + (x+2) + ... + (x+10) =165
\(\left(x+1\right)+\left(x+2\right)+...+\left(x+10\right)=165\)
\(x+1+x+2+...+x+10=165\)
\(10x+55=165\)
\(10x=165-55\)
\(10x=110\)
\(x=11\)
Ta có : (x+1)+(x+2)+...+(x+10)=165
<=> x+1+x+2+...+x+10=165
(x+x+...+x)+(1+2+...+10)=165
10x+(10+1).(10-1+1):2=165
10x+11.10:2=165
10x+55=165
10x=165-55=110
x=110:10
=> x=11
Vậy x cần tìm là 11
1.viet so 1111122222 thanh tich cua 2 so tu nhien lien tiep.
2.tim x,biet
x+2*x+3*x=136 x+45=3*x 100-2*x=3*x 50+2*x=40+x
3.tim 3 so tu nhien le lien tiep biet rang tong so lon nhat va be nhat bang 114.
4.tim ket qua cua phep nhan
3333333333*9999999999
nho cac ban giai chi tiet gium minh nhe
tim so tu nhien x y sao cho (x-2).(2y+3)=26tim so tu nhien x y sao cho (x-2).(2y+3)=26
Xem thêm câu trả lời
tim so tu nhien x biet
a) (x-35)-120=0
b)124+(118-x)=217
c) 156-(x+61)=82
a) \(\left(x-35\right)-120=0\)
\(\Rightarrow x-35=120\)
\(\Rightarrow x=120+35\)
\(\Rightarrow x=155\)
b) \(124+\left(118-x\right)=217\)
\(\Rightarrow118-x=93\)
\(\Rightarrow x=25\)
c) \(156-\left(x+61\right)=82\)
\(\Rightarrow x+61=74\)
\(\Rightarrow x=13\)
Đúng 0
Bình luận (0)
a) ( x - 35 ) - 120 =0
x - 35 = 0 + 120
x - 35 = 120
x = 120 + 35
x = 155
b) 124 + ( 118 - x ) = 217
118 - x = 217 - 124
118 - x = 93
x = 118 - 93
x = 25
c) 156 - ( x + 61 ) = 82
x + 61 = 156 - 82
x + 61 = 74
x = 74 - 61
x = 13
Đúng 0
Bình luận (0)
1) Tim cac so tu nhien x sao cho :
a) x M7 va 0 < x < 60 b) 12 Mk
2) Tim so tu nhien n sao cho n(n +1) =6