Question

Solve for the value of $x$, if $\frac{15}{4}-7x=9$.

Answer 1

Given linear equation is,

$\frac{15}{4}-7x=9$

By applying the transpose rules,

$\Rightarrow \frac{15}{4}-9=7x$

$\Rightarrow \frac{15-36}{4}=7x$

$\Rightarrow \frac{-21}{4}=7x$

$\Rightarrow \frac{-21}{4}\times \frac{1}{7}=x$

$\Rightarrow \frac{-3}{4}=x$

$\therefore x=-\frac{3}{4}$