Question

Tìm x biết -2/3 -  1/3(2x-5)=3/2

Answer 1

1/3(2x-5)=-2/3-3/2

1/3(2x-5)=-13/6

2x-5=-13/6:1/3

2x-5=-13/2

2x=-13/2+5

2x=-3/2

x=-3/2:2

x=-3/4

Answer 2

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

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

\(\frac{1}{3}\left(2x-5\right)=-\frac{13}{6}\)

\(2x-5=-\frac{13}{6}:\frac{1}{3}\)

\(2x-5=-\frac{13}{6}\cdot\frac{3}{1}\)

\(2x-5=-\frac{13}{2}\)

\(2x=-\frac{13}{2}+5\)

\(2x=-1\)

\(x=-1:2\)

\(x=-\frac{1}{2}\)

Answer 3

 

-2/3 - 1/3(2x-5)=3/2

 1/3(2x-5)=-2/3-3/2

 1/3(2x-5)=-13/6

2x-5=-13/6:1/3

2x-5=-13/2

2x=-13/2+5

2x=-3/2

x=-3/2:2

x=-3/4

 

 

Answer 4