Question

?????? срочно????!!!!????)

Answer 1

$5x - 2x + 3 = 6 \\ 5x - 2x = 6 - 3 \\ 3x = 3 \\ x = 3 \div 3 \\ x = 1$

Answer 2

5х-2х+3=6
5х-2х=6-3
5х-2х=3
(5-2)•х=3
Х=3-3
Х=1
Проверка:
5•1-2•1+3=6
6=6