Question

Proszę o małą pomoc
3-2=3 (2-x)
3 (2-x)=5+2 (x-7)
2x+3=4x-12
5 (6x-8)+2x=4 (3x+5)

Answer 1

3-2=3 (2-x)
1 = 6 - 3x
-3x = 1 - 6
-3x = -5
x = 5/3 = 1 2/3

3 (2-x)=5+2 (x-7)
6 - 3x = 5 + 2x - 14
-3x - 2x = -9 - 6
-5x = -15
x = 3

2x+3=4x-12
2x - 4x = -12 - 3
-2x = -15
x = 15/2 = 7 1/2

5 (6x-8)+2x=4 (3x+5)
30x - 40 + 2x = 12x + 20
32x - 12x = 20 + 40
20x = 60
x = 3