Question

Решите 4-ое задание плиз

Answer 1

$- 1 = 2x - 7 \ - 2x = - 7 + 1 \ - 2x = - 6 \ x = 3$

2.

$0 = 2x - 7 \ - 2x = - 7 \ x = 3.5$

3.

$2x = 3 + 7 \ 2x = 10 \ x = 10 div 2 \ x = 5$

4.

$7 = 2x - 7 \ 2x = 7 + 7 \ 2x = 14 \ x = 14 div 2 \ x = 7$