Question

Como despejar X en : a/x+1 = b/x-1

Answer 1

$\frac{a}{x + 1} = \frac{b}{x - 1} \\ \\ a(x - 1) = b(x + 1) \\ ax - a = bx + b \\ ax - bx = b + a \\ x(a - b) = a + b \\ \\ x = \frac{a + b}{a - b}$