Question

Solve a=bx+cx+d for x

Answer 1

      a = bx + cx + d   Subtract d from both sides
a - d = bx + cx          Factor x from bx and cx
a - d = x (b + c)         Divide both sides by (b + c)
$\frac{a - d}{b + c}$ = x   Switch the sides to make it easier to read
x =  $\frac{a - d}{b + c}$