Question

Tìm x

-5.(x + 1/5) - 1/2 (x - 2/3)= 3/2 . x - 5/6

Answer 1

\(-5.\left(x+\frac{1}{5}\right)-\frac{1}{2}\left(x-\frac{2}{3}\right)=\frac{3}{2}.x-\frac{5}{6}\)

\(\Leftrightarrow-5x-1-\frac{1}{2}x+\frac{1}{3}=\frac{3}{2}x-\frac{5}{6}\)

\(\Leftrightarrow-6x=-\frac{1}{6}\)

\(\Leftrightarrow x=\frac{1}{36}\)

Answer 2

Sorry mik làm nhầm 

\(-5\cdot\left(x+\frac{1}{5}\right)-\frac{1}{2}\left(x-\frac{2}{3}\right)=\frac{3}{2}x-\frac{5}{6}\)

\(\Leftrightarrow-5x-1-\frac{1}{2}x+\frac{1}{3}=\frac{3}{2}x-\frac{5}{6}\)

\(\Leftrightarrow-7x=-\frac{1}{6}\)

\(\Leftrightarrow x=-\frac{1}{42}\)

\(\text{Vậy }x=-\frac{1}{42}\)