1) 4x - 16 = 2x
4x - 2x = 16
2x = 16
x = 8
2) 18x - 31 + 2 - 4x = 165
18x - 4x = 165 + 31 - 2
14x = 196
x = 14
1) 4x - 16 = 2x
4x - 2x = 16
2x = 16
x = 8
2) 18x - 31 + 2 - 4x = 165
18x - 4x = 165 + 31 - 2
14x = 196
x = 14