Question

Решите уравнение.
2x-3(x-3)=6

Answer 1

2х - 3(х - 3) = 6
2х - 3х +9 = 6
- х = - 3
х = 3

Answer 2

2х-3х-9=6
2х-3х=6+9
-х=15
х=15

Answer 3

-3 * -3 = 9, а не - 9