6x + 36 = 90 + 42
6x + 36 = 132
6x = 132 - 36
6x = 96
x = 16
6x + 36 = 90 + 42
6x + 36 = 132
6x = 132 - 36
6x = 96
x = 96 : 6
x = 16
6x + 36 = 90 + 42
6x + 36 = 132
6x = 132 - 36
6x = 96
x = 16
ai k mik mik k lại
6x + 36 = 90 + 42
6x + 36 = 132
6x = 132 - 36
6x = 96
x = 96 : 6
x = 16
6x + 36 = 90 + 42
6x + 36 = 132
6x = 132 - 36
6x = 96
x = 96 : 6
x = 16