Question

-х-4+5(х+3)=5(х-1)-2

Answer 1

-x-4+5x+15=5x-5-2

-x+5x-5x=-5-2+4-15

-x=-5-2+4-15/:(-1)

x=5+2-4+15

x=18

Answer 2

$- x - 4 + 5x + 15 = 5x - 5 - 2 \ 4x + 11 = 5x - 7 \ 4x + 11- 5x + 7 = 0 \ - x + 18 = 0$

$- x = 0 - 18 \ - x = - 18 \ x = 18$

Ответ:х=18