Question

Giải hộ mình với nhanh lên

 

1/2 x-1/3 x=4/7+(-5/8)-3/28

 

 

 

 

 

Answer 1

\(\frac{1}{2}x-\frac{1}{3}x=\frac{4}{7}+\left(-\frac{5}{8}\right)-\frac{3}{28}\)

\(\frac{1}{2}x-\frac{1}{3}x=\frac{4}{7}-\frac{5}{8}-\frac{3}{28}\)

\(\frac{1}{2}x-\frac{1}{3}x=\frac{32}{56}-\frac{35}{56}-\frac{6}{56}\)

\(\frac{1}{2}x-\frac{1}{3}x=\frac{32-35-6}{56}\)

\(\frac{1}{2}x-\frac{1}{3}x=\frac{-9}{56}\)

\(\frac{1}{2}x-\frac{1}{3}x=-\frac{9}{56}.168\)

\(\frac{1}{2}x-\frac{1}{3}x=-27\)

\(84x-56x=-27\)

\(28x=-27\)

\(x=\frac{-27}{28}\)

\(\Rightarrow x=\frac{-27}{28}\)