Question

Реши уравнение:
-5x−18=7x+66.

Ответ: x=

Answer 1

-5x-18=7x+66

-5x-7x-18-66 = 0

-12x-84 = 0

-12x = 84

12x = -84

x = -7

Answer 2

-5x-7x=66+18

-12x=84

-x=7

x=-7