4x + 5.5 = 2x – 2.5
4x – 2x = – 2,5 – 5,5
2x = -8
x = -4
2x-(6x+1)=9
2x – 6x – 1 = 9
2x – 6x = 9 + 1
-4x = 10
x = -2.5
4x + 5.5 = 2x – 2.5
4x – 2x = – 2,5 – 5,5
2x = -8
x = -4
2x-(6x+1)=9
2x – 6x – 1 = 9
2x – 6x = 9 + 1
-4x = 10
x = -2.5