Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point form:
(0, -3)
Equation form:
x = 0
y = -3
Answer:
8/24 = 1/3
10/20 = 1/2
9/18 = 1/2
8/48 = 1/6
12/24 = 1/2
56/80 = 7/10
30/50 = 3/5
32/48 = 2/3
20/30 = 2/3