Ôn tập toán 6
Các câu hỏi tương tự
Tìm x biết
a) x + \(2\frac{3}{4}=5\frac{2}{3}\)
b)X x \(3\frac{1}{2}=4\frac{3}{4}\)
c) x - \(4\frac{1}{5}=3\frac{2}{7}\)
d) x - \(\frac{3}{4}=6\text{x}\frac{3}{8}\)
e) \(\frac{7}{8}:x=3\frac{1}{2}\)
tìm x biết :a) left(x+frac{1}{2}right).left(frac{2}{3}-2xright)0b) left(x.6frac{2}{7}+frac{3}{7}right).2frac{1}{5}-frac{3}{7}-2c) x.3frac{1}{4}+left(-frac{7}{6}right).x-1frac{2}{3}frac{5}{12}d) 5frac{8}{17}:x+left(-frac{4}{17}right):x+3frac{1}{7}:17frac{1}{3}frac{4}{11}e) frac{17}{2}-left|2x-frac{3}{4}right|-frac{7}{4}
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tìm x biết :
a) \(\left(x+\frac{1}{2}\right).\left(\frac{2}{3}-2x\right)=0\)
b) \(\left(x.6\frac{2}{7}+\frac{3}{7}\right).2\frac{1}{5}-\frac{3}{7}=-2\)
c) \(x.3\frac{1}{4}+\left(-\frac{7}{6}\right).x-1\frac{2}{3}=\frac{5}{12}\)
d) \(5\frac{8}{17}:x+\left(-\frac{4}{17}\right):x+3\frac{1}{7}:17\frac{1}{3}=\frac{4}{11}\)
e) \(\frac{17}{2}-\left|2x-\frac{3}{4}\right|=-\frac{7}{4}\)
Tìm x biết : \(2\frac{1}{4}x-9\frac{1}{4}=-7\frac{1}{4}\)Tìm x biết: \(1-\left(6\frac{3}{8}+x-7\frac{5}{24}\right).16\frac{2}{3}=26\)
Bài 14 : Tìm x biết :
e) \(\frac{-2}{3}-\frac{1}{3}\left(2x-5\right)=\frac{3}{2}\) g) \(\frac{2}{5}x+\frac{1}{2}=\frac{-3}{4}\) h) \(\frac{1}{3}x-8=\frac{1}{2}\) i) \(x-\frac{1}{4}=\frac{5}{8}.\frac{2}{3}\)
Tìm x biết
\(\frac{2}{3}+x=\frac{-4}{5}\)\(\frac{2}{5}-x=\frac{-1}{3}\)\(1-\frac{x}{3}=1\frac{1}{2}\)\(1-\left(\frac{2x}{3}+2\right)=-1\frac{1}{3}\)tìm số x , biết :a) frac{2}{3}x-frac{3}{2}xfrac{5}{12}b) frac{2}{5}+frac{3}{5}.left(3x-3,7right)frac{-53}{10}c) frac{7}{9}:left(2+frac{3}{4}xright)+frac{5}{9}frac{23}{27}d) frac{-2}{3}.x+frac{1}{5}frac{3}{10}e) left|xright|-frac{3}{4}frac{5}{3}f) left|2x-frac{1}{3}right|+frac{5}{6}1
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tìm số x , biết :
a) \(\frac{2}{3}x-\frac{3}{2}x=\frac{5}{12}\)
b) \(\frac{2}{5}+\frac{3}{5}.\left(3x-3,7\right)=\frac{-53}{10}\)
c) \(\frac{7}{9}:\left(2+\frac{3}{4}x\right)+\frac{5}{9}=\frac{23}{27}\)
d) \(\frac{-2}{3}.x+\frac{1}{5}=\frac{3}{10}\)
e) \(\left|x\right|-\frac{3}{4}=\frac{5}{3}\)
f) \(\left|2x-\frac{1}{3}\right|+\frac{5}{6}=1\)
Bài 14 : Tìm x biết :
a) x: \(4\frac{1}{3}=-2,5\) b) x: \(\frac{-3}{5}=\frac{-10}{21}\) c) \(\frac{2}{3}x-\frac{1}{2}=\frac{1}{10}\) d) \(\frac{1}{2}x+\frac{1}{2}=\frac{5}{2}\)
tìm xϵz ;
a) \(-4\frac{3}{5}.2\frac{4}{23}< _-x< _--2\frac{3}{5}.1\frac{6}{15}\)
BT 1 TÌM X
A, \(\frac{3}{4}x+1=2\)
b, \(\frac{2}{3}+\frac{1}{3}:x=-1\)
c , |2x-1|=5
Tìm x:
a) \(\frac{x}{5}+\frac{1}{2}=\frac{x}{2}\) b) \(\frac{x}{6}=\frac{x}{2}+3\)
c) \(\frac{x-1}{4}+\frac{3}{4}=\frac{2x+1}{2}\) c) x2 -7x + 12 = 0