Question

1. solve: $\frac{x + 10}{x - 7}=\frac{8}{9}$

Explanation:

Step1: Cross - multiply

$9(x + 10)=8(x - 7)$

Step2: Expand both sides

$9x+90 = 8x-56$

Step3: Move terms with $x$ to one side

$9x - 8x=-56 - 90$

Step4: Simplify

$x=-146$

Answer:

$x = - 146$