Answer:
members: $15
nonmembers: $45
Step-by-step explanation:
x: members
y: nonmembers
3x + 3y = 180
5x + 3y = 210
Subtract equations to cancel out y values.
-2x = -30
x = 15
Substitute this x value into an equation.
3x + 3y = 180
3(15) + 3y = 180
3y = 135
y = 45