Question

Д) 5x-(2x - 9)= 6 +(x+3) Помогите пожалуйста!

Answer 1

$5x - (2x - 9) = 6 + (x + 3) \\ 5x - 2x + 9 = 6 + x + 3 \\ 5x - 2x - x = 6 + 3 - 9 \\ 2x = 0 \\ x = 0 \div 2 \\ x = 0$

Answer 2

5х-2х+9 = 6+х+3
3х+9=9+х
3х=х
3х-х=0
2х=0
х=0