Các câu hỏi tương tự
Tìm x, biếta)
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Đọc tiếp
Tìm x, biết
a) x : − 2 1 15 + 3 1 2 = − 3 4 b) − 5 8 − x : 3 5 6 + 7 3 4 = − 2
c) x − 3 4 − 1 4 = 0 d) 3 4 : 2 4 9 − − 3 x + 2 2 3 = 3 4
e) x − 1 3 = 2 − 3 x f) 3 5 7 x − 1 5 7 x − 1 3 = 2 3
g) − 3 4 3 x − 1 = − 27 64 h) 4 5 2 x + 5 = 256 625
i) x − 2 15 3 = 8 125 k) x + 3 5 x + 3 2 = 64 27
m) x − 1 x + 5 = 6 7 n) 4 13 . 6 5 + 4 13 . 2 5 . 2 x + 1 2 = 10 13
1) x+1/x-2=3/4
2)x-1/3=x+3/5
3)2x+3/24=3x-1/32
4)2x+3/6=7x-3/15
10)12-7x/-13=4-3x/-5
các bạn trả lời nhanh dùm mình nhoaa!
Tìm x
a)x+2x+3x+4x+...+100x=-213
b)x+1/3=x-2/4
c)x-6/7+x-7/8+x-8/9=x-9/10+x-10/11
d)x+32/11+x+23/12=x+38/13+x+27/14
e)x-1/2004+x-2/2003-x-3/2002+x-4/2001
GIẢI GIÚP MÌNH NHA MÌNH ĐANG CẦN GẤP
Tìm x:
a) 3x.(x-1) +5.(2-x) = 3x2 - 7x + 6
b) (x + 2)2 = \(\frac{1}{2}-\frac{1}{3}\)
c) \(\frac{x+32}{11}\)+ \(\frac{x+23}{12}\)= \(\frac{x+38}{13}\)+ \(\frac{x+27}{14}\)
Bài 1 Tính
a, 12/21-3/7+-2/3
b,(-25/13)+(-9/17)+12/13+(-25/17)
c,5/9.7/13+5/9.9/13-5/9.3/13
Bài 2 tìm x
a,2/3x+5/7=3/10
b,x:5/2-1/2=-2/3
c,|x-3/4|-1/2=0
Tìm x
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Đọc tiếp
Tìm x
a/ 1 3 + 2 3 : x = − 1 2 3
b/ 1 2 − 2 . x + 3 4 = 5 6
c/ x 2 + x 3 = − 1
d/ 3 x − 1 = 21 16
MỌI NGƯỜI GIÚP EM VỚIBài 1: tìm xa)left|3x-5right|4b)dfrac{x+1}{10}+dfrac{x+1}{11}+dfrac{x+1}{12}dfrac{x+1}{13}+dfrac{x+1}{14}c)dfrac{x+4}{2000}+dfrac{x+3}{2001}dfrac{x+2}{2002}+dfrac{x+1}{2003}Bài 2: Tínha)dfrac{dfrac{1}{9}-dfrac{1}{7}-dfrac{1}{11}}{dfrac{4}{9}-dfrac{4}{7}-dfrac{4}{11}}+dfrac{dfrac{3}{5}-dfrac{3}{25}-dfrac{3}{125}-dfrac{3}{625}}{dfrac{4}{5}-dfrac{4}{25}-dfrac{4}{125}-dfrac{4}{625}}b)dfrac{1}{100.99}-dfrac{1}{99.98}-dfrac{1}{98.97}-...-dfrac{1}{3.2}-dfrac{1}{2.1}c)dfrac{left(dfr...
Đọc tiếp
MỌI NGƯỜI GIÚP EM VỚI
Bài 1: tìm x
a)\(\left|3x-5\right|=4\)
b)\(\dfrac{x+1}{10}+\dfrac{x+1}{11}+\dfrac{x+1}{12}=\dfrac{x+1}{13}+\dfrac{x+1}{14}\)
c)\(\dfrac{x+4}{2000}+\dfrac{x+3}{2001}=\dfrac{x+2}{2002}+\dfrac{x+1}{2003}\)
Bài 2: Tính
a)\(\dfrac{\dfrac{1}{9}-\dfrac{1}{7}-\dfrac{1}{11}}{\dfrac{4}{9}-\dfrac{4}{7}-\dfrac{4}{11}}+\dfrac{\dfrac{3}{5}-\dfrac{3}{25}-\dfrac{3}{125}-\dfrac{3}{625}}{\dfrac{4}{5}-\dfrac{4}{25}-\dfrac{4}{125}-\dfrac{4}{625}}\)
b)\(\dfrac{1}{100.99}-\dfrac{1}{99.98}-\dfrac{1}{98.97}-...-\dfrac{1}{3.2}-\dfrac{1}{2.1}\)
c)\(\dfrac{\left(\dfrac{3}{10}-\dfrac{4}{15}-\dfrac{7}{20}\right).\dfrac{5}{19}}{\left(\dfrac{1}{14}+\dfrac{1}{7}-\dfrac{-3}{35}\right).\dfrac{-4}{3}}\)
Tìm x biết
a) x+2x+3x+4x+...+100x=-213
b)\(\frac{1}{2}x-\frac{1}{3}=\frac{1}{4}x-\frac{1}{6}\)
c)3(x-2)+2(x-1)=10
d)\(\frac{x+1}{3}=\frac{x-2}{4}\)
e)\(\frac{x-6}{7}+\frac{x-7}{8}+\frac{x-8}{9}=\frac{x-9}{10}+\frac{x-10}{11}+\frac{x-11}{12}\)
f)\(\frac{x+32}{11}+\frac{x+23}{12}=\frac{x+38}{13}+\frac{x+27}{14}\)
7. Tìm x
a. |2x-5|+3x=12 b. |x+1|+|x+2|+|x+3|=4x
c. |x2+|x+2||=x2+3 d. |x2-3|=6
Tìm số hữu tỉ x biết :
a/ | 23 + 2x | + 13 = -5x
b/ | 2x^2 - 3x | = 5x
c/ | 5x + 1 | + | 2x + 5 | + | x + 9 | = 3x
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