Jika 3(x+2)+5=2(×+15),nilai x + 2 =

3(x + 2) + 5 = 2(x + 15)
3x + 6 + 5 = 2x + 30
3x + 11 = 2x + 30
3x – 2x = 30 – 11
x = 19

x + 2 = 19 + 2 = 21