x + 8 = 24
What is 16
31 = x - 24
What is 55
3x + 10 = 46
What is 12?
4x - 15 = 9
What is 6?
3(x+5)= 21
What is 2?
x/3 + 4 =10
What is 18?
4(x-7)=-20