Question

Решите уравнение 2х+5-2=9

Answer 1

2х+5-2=9
2х+5=11
2х=6
х=3

Answer 2

2х+5-2=9
2х+5=9+2
2х+5=11
2х=11-5
2х=6
х=6:2
х=3
Проверка
2*3+5-2=9