3-7x=-5(x+3) решение? (X=9)

Question

3-7x=-5(x+3)
решение? (X=9)

Answer 1

3 - 7x = -5(x + 3)
3 - 7x = -5x - 15
-7x + 5x = -3 - 15
-2x = - 18
x = -18 : (-2)
x = 9
Ответ : 9

Answer 2

3-7х=-5(х+3)
3-7х=-5х-15
3+15=-5х+7х
18=2х
х=18:2
х=9

Comments

X=9-_-