Answer
$x = -\frac{4}{3}$
Work Step by Step
$\frac{3}{4}x + 1 = 0$
$\frac{3}{4}x + 1 -1 = 0 -1 $
$\frac{3}{4}x = - 1$
$\frac{3}{4}x \times 4 = - 1 \times 4$
$3x = -4$
$3x \times \frac{1}{3} =-4 \times \frac{1}{3} $
$x = -\frac{4}{3}$