Question

вычислите значение, если 3 х-2 у=0 (7х+2у)/(8х-3у)

Answer 1

$3x-2y=0 \\ \\ \frac{7x+2y}{8x-3y} \\ \\ 3x-2y=0 \\ 3x=2y \\ \\ x= \frac{2y}{3}$

Answer 2

$3x-2y=0$ $3x=2y$ $y= \frac{3}{2}x$
$\frac{7x+2y}{8x-3y}= \frac{7x+3x}{8x-4,5x}= \frac{10x}{3,5x}= \frac{100x}{35x}= \frac{20}{7}x$