Question

7/5 x X + 4/5 = -7/10

Answer 1

\(\dfrac{7}{5}.x+\dfrac{4}{5}=\dfrac{-7}{10}\)

\(=>\dfrac{7}{5}.x=\dfrac{-7}{10}-\dfrac{4}{5}=\dfrac{-7}{10}-\dfrac{8}{10}\)

\(=>\dfrac{7}{5}.x=-\dfrac{15}{10}\)

\(=>x=\dfrac{-15}{10}:\dfrac{7}{5}=\dfrac{-15}{10}.\dfrac{5}{7}\)

\(=>x=\dfrac{-15}{14}\)

Answer 2

\(\frac75\cdot x+\frac45=\frac{-7}{10}\\\Rightarrow \frac75\cdot x=\frac{-7}{10}-\frac45\\\Rightarrow \frac75\cdot x=-\frac32\\\Rightarrow x=-\frac32:\frac75\\\Rightarrow x=-\frac{15}{14}\)