Cách khác đơn giản hơn:
TA có:
\(\frac{x+5}{6}=-\frac{2}{3}\)
\(\Rightarrow\frac{x+5}{6}=-\frac{4}{6}\)
\(\Rightarrow x+5=-4\)
\(x=\left(-4\right)-5=-9\)
Vậy x=-9
tìm x biết :
\(2\frac{5}{6}\cdot x-\frac{3}{2}=3\frac{5}{6}\)
1 tìm x biết ;
a, 0-|x + 1| = 5
b, 2 - | \(\frac{3}{4}\)- x | = \(\frac{7}{12}\)
c, 2 | \(\frac{1}{2}\)x - \(\frac{1}{3}\)| - \(\frac{3}{2}\)= \(\frac{1}{4}\)
d, | x - \(\frac{1}{3}\)| = \(\frac{5}{6}\)
e, \(\frac{3}{4}\)- 2 | 2x - \(\frac{2}{3}\)| = 2
f, \(\frac{2x-1}{2}\)= \(\frac{5+3x}{3}\)
1 tìm x biết ;
a, 0-|x + 1| = 5
b, 2 - | \(\frac{3}{4}\)- x | = \(\frac{7}{12}\)
c, 2 | \(\frac{1}{2}\)x - \(\frac{1}{3}\)| - \(\frac{3}{2}\)= \(\frac{1}{4}\)
d, | x - \(\frac{1}{3}\)| = \(\frac{5}{6}\)
e, \(\frac{3}{4}\)- 2 | 2x - \(\frac{2}{3}\)| = 2
f, \(\frac{2x-1}{2}\)= \(\frac{5+3x}{3}\)
bài 15 tìm x biết
a\(\frac{x}{4}-\frac{3}{7}+\frac{2}{5}=\frac{31}{140}\)
b\(\frac{5}{12}+\frac{5}{x}-\frac{1}{8}=\frac{1}{2}\)
c\(x+\frac{1}{9}-\frac{3}{5}=\frac{3}{6}\)
d\(\frac{3}{4}-x+\frac{6}{-11}=\frac{5}{6}\)
e\(x-\frac{1}{9}-\frac{3}{5}=\frac{3}{6}\)
Tìm x biết:
\(\frac{-5}{6}+\frac{8}{3}+\frac{29}{-6}\le x\le\frac{-1}{2}+2+\frac{5}{2}\)
Tìm x biết:
\(x+\frac{1}{3}=\frac{1}{6}x\)
\(\left(\frac{1}{2}+2x\right).\frac{2}{3}=\frac{5}{6}\)
Tìm x, biết:
a. \(\frac{-2}{5}+\frac{6}{5}.\left(y-\frac{2}{3}\right)=\frac{-4}{15}\)
b.\(\frac{-2}{5}+\frac{2}{3}x+\frac{1}{6}x=\frac{-4}{15}\)
c. \(\frac{3}{2}x+\frac{-2}{5}-\frac{2}{3}x=\frac{-4}{15}\)
giúp dùm mình nhanh với nhé thnks các bạn nhiều
tìm x,biết :\(x-(\frac{5}{6}-x)=x-\frac{2}{3}\)
1) \(\frac{24}{-12}=\frac{x}{5}=\frac{-y}{3}\)Tìm x và y
2) \(\frac{1}{3}+\frac{-2}{5}+\frac{1}{6}+\frac{-5}{25}\le\frac{x}{10}< \frac{-3}{4}+\frac{4}{14}+\frac{-2}{8}+\frac{-3}{5}+\frac{5}{7}\)Tìm x
3) \(\frac{8.x+18}{2.x+6}\)Tìm x
\(\frac{x}{5}=\frac{5}{6}+\frac{-19}{30}\)
\(x=\frac{1}{2}+\frac{-2}{3}\)
\(\frac{x}{30}=\frac{3}{5}+\frac{7}{30}\)
Đề bài: Tìm x biết:
