Answer
$x=-8$
Work Step by Step
Multiply both sides by -$\frac{2}{7}$ to isolate the variable.
28=-$\frac{7}{2}$x
-$\frac{7}{2}$x=28
$\frac{-2(-7)x}{7(2)}$=-$\frac{28(2)}{7}$
$x=-\frac{56}{7}$
$x=-8$
Check the answer.
-$\frac{7}{2}$(-8)=28
$\frac{7(8)}{2}$=28
$\frac{56}{2}$=28
28=28