Why do we use inverse operation when solving?
Solve for x
x + 18 = 30
10
12
48
8
x - 21 = 6
In 2 + y = 11, y = 13
Tačno
Netačno
Solve for x:
2x + 5 = 21
4x - 2 = 14
In 3x + 2 = 8, x = 2