Tentukan nilai X dari ... 1. (X + 5) = 3 2. (2X - 3) = 5 3. (X + 1) + 2X = 7

1. x +5 = 3
=x = 3 - 5 = -2
2. 2x - 3 = 5
=2x=5 + 3
=2x=8
=x=8:2=4
3. x + 1 + 2x = 7
= 3x= 7 - 1
= 3x = 6
= x = 6 : 3 = 2