3x – 6 = 1x + 4
3x – x = 4 + 6
2x = 10
x = 5
x+(x-20)+3x=180
x + x – 20 + 3x = 180
x + x + 3x = 180 + 20
5x = 200
x = 40
5x – 22 = 2x + 14
5x – 2x = 14 + 22
3x = 36
x = 12
x+(x+24)=5x
x + x + 24 = 5x
x + x – 5x = – 24
-3x = -24
x = 8
3x – 6 = 1x + 4
3x – x = 4 + 6
2x = 10
x = 5
x+(x-20)+3x=180
x + x – 20 + 3x = 180
x + x + 3x = 180 + 20
5x = 200
x = 40
5x – 22 = 2x + 14
5x – 2x = 14 + 22
3x = 36
x = 12
x+(x+24)=5x
x + x + 24 = 5x
x + x – 5x = – 24
-3x = -24
x = 8