Question

9÷(24 1/2- 2 1/2x)=3/4

Answer 1

$9:(24 frac{1}{2} -2 frac{1}{2} x)= frac{3}{4}$
$24,5-2,5x=9:0,75$
$24,5-2,5x=12$
$2,5x=24,5-12$
$2,5x=12,5$
$x=12,5:2,5$
$x=5$