Question

1) 3х + 8 = 26 помогите пж
2) 12х = 8х + 32
3) 7х - 18 = 12 - 3х

Answer 1

1) 3x + 8 = 26

3x = 26 - 8

3x = 18

x = 6

2) 12x = 8x + 32

12x - 8x = 32

4x = 32

x = 8

3) 7x - 18 = 12 - 3x

7x + 3x = 12 + 18

10x = 30

x = 3

Answer 2

$3x + 8 = 26 \\ 3x = 26 - 8 \\ 3x = 18 \\ x = 18 \div 3 \\ x = 6$

$12x = 8x + 32 \\ 12x - 8x = 32 \\ 4x =32 \\ x = 32 \div 4 \\ x = 8$

$7x - 18 = 12 - 3x \\ 7x + 3x = 12 + 18 \\ 10x = 30 \\ x = 30 \div 10 \\ x = 3$