y - 10 = 3
y = 13
6x = 12
x = 2
2x + 5 = 21
x = 8
x/4 - 2 = 2
x = 16
Simplify. 7(t + 8.5) - 5t + 4
2t + 63.5
4x - 1 - 2x = 1
x=1