А)(4x-1)-(3x+1)=2
4x – 1 – 3x – 1 = 2
4x – 3x = 2 + 1 + 1
x = 4
б)(20x-5)-(4+7x)=4
20x – 5 – 4 – 7x = 4
20x – 7x = 4 + 4 + 5
13x = 13
x = 1
в)5x-6=8+4x
5x – 4x = 8 + 6
x = 14
г)6x-3=4x+3
6x – 4x = 3 + 3
2x = 6
x = 3
д)7-2x=5x-7
– 2x – 5x = – 7 – 7
-7x = -14
x = 2
А)(4x-1)-(3x+1)=2
4x – 1 – 3x – 1 = 2
4x – 3x = 2 + 1 + 1
x = 4
б)(20x-5)-(4+7x)=4
20x – 5 – 4 – 7x = 4
20x – 7x = 4 + 4 + 5
13x = 13
x = 1
в)5x-6=8+4x
5x – 4x = 8 + 6
x = 14
г)6x-3=4x+3
6x – 4x = 3 + 3
2x = 6
x = 3
д)7-2x=5x-7
– 2x – 5x = – 7 – 7
-7x = -14
x = 2