5y=25x 25x=5y -5y 25x-5y=0
x = (-5y + 4) / 7
15
7x + 5y 7(3) + 5(2) 21 + 10 = 31
8 + 5y = 18 Therefore, 5y = 10 y = 10/5 y = 2
(9,3)
5y=25x 25x=5y -5y 25x-5y=0
If: 4x = 5y Then: x = 5y/4
(-5, 2)
7
5y + 7 = 25y = -5y = -1
y = -6
x = (-5y + 4) / 7
15
8 - 5y = 12 -5y = 4 y = -4/5
x = 0 and y = 4
Solving for y: 5y = 9 + 2y 5y - 2y = 9 3y = 9 y = 9/3 = 3