Question

11) (-20х – 50)*2= 100

12) х – 32 = (х + 8)*(-7)​

Answer 1

Ответ:

$( - 20x - 50) \times 2 = 100 \\ - 40x - 100 = 100 \\ - 40x = 100 + 100 \\ - 40x = 200 \\ x = - 5$

$x - 32 = (x + 8) \times ( - 7) \\ x - 32 = - 7x - 56 \\ x + 7x = - 56 + 32 \\ 8x = - 24 \\ x = - 3$