4х+(7-2х)+3=2х-5(х-9)

Question

4х+(7-2х)+3=2х-5(х-9)

Answer 1

4х+7-2х+3=2х-5х+45
4х-2х-2х+5х=45-7-3
5х=35
х=35:5
х=7
Проверка:
4*7+7-2*7+3=2*7-5*7+45
28+7-14+3=14-35+45
24=24
Решено верно!

Answer 2

4x+7-2x+3=2x-5x+45
2x+10=2x-5x+45
5x=45-10
5x=35
x=7