Question

(2+х)*2+(4х-1)*3=10х-7

Answer 1

4+2x+12x-3=10x-7

2x+12x-10x=-7+3-4

4x=-8

x=-2

Ответ: -2

Answer 2

(2+х)*2+(4х-1)*3=10х-7

4+2х+12х-3=10х-7

2х+12х-10х=-7-4+3

4х=-8

х=-8:4

х=-2

ОТВЕТ: -2