Question

УПРОСТИТЕ УРАВНЕНИЕ ДАЮ 30 БАЛЛОВ!!! (5*х-7)+10(х-2)+3(12-5*х)

Answer 1

5х-7+10х-20+36-15х=15х-15х+36-27=9

Answer 2

(5x-7)+10(x-2)+3(12-5x)
(5x-7)+(10x-20)+(36-15x)
5x-7+10x-20+36-15x
5x+10x-15x-7-20+36=9
ответ: 9