Question

Срочно!!! Выразите c : a+b/c=d Выразите все буквы a-b/c=1/d

Answer 1

$1)\frac{a + b}{c} = d \\ c = \frac{a + b}{d} \\ \\ 2) \frac{a - b}{c} = \frac{1}{d} \\ a - b = \frac{c}{d} \\ a = \frac{c}{d} + b \\ b = a - \frac{c}{d} \\ c = (a - b) \times d \\ d = \frac{c}{a - b}$