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.

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