1) 3y + 5 = 18
Subtract 5 from both sides:
3y = 13
Divide by 3:
y = 13/3

2) 2y + 8 = 7y - 37
Subtract 2y from both sides:
8 = 5y - 37
Add 37 to both sides:
45 = 5y
Divide by 5:
y = 9