Question

2x-3supra4+x-6supra3-4x+15supra4+85supra12=0

Answer 1

$2x- \frac{3}{4} +x- \frac{6}{3} -4x+ \frac{15}{4} + \frac{85}{12} =0$
$-12x- 9 - 24 + 45 + 85 =0$
$-12x+97=0$
$-12x=-97 |*(-1)$
$12x=97$
$x= \frac{97}{12}$