x=(-5y-1)/3
9y+3 = 5y+13 9y-5y = 13-3 4y = 10 y =2.5
Solving for y: 5y = 9 + 2y 5y - 2y = 9 3y = 9 y = 9/3 = 3
7x + 5y 7(3) + 5(2) 21 + 10 = 31
y = -4;
(4, -1)
-3/5
5y = 2y+9 5y-2y = 9 3y = 9 y = 3
If: 20x+5y = 15 Then: y = -4x+3
(2, 3)
9y+3=5y+13 4y=10 y=10/4 or 5/2 or 2.5
It is 3 and the slope is 3/5