7x + y = 4y = 4 - 7x
y=±√15
(20 - x)/5
To solve for y, divide both sides of the equation by -0.8.
17
-y + y equals 0.
For y - 2y - 3y equals 0, y equals 0.
b = y - mx.
y= -2x
y - 3 = 0 y = 3
y=x+4
y = -6
-3
y=5-x
16
y = mx + b
2y = 4 (divide both sides by 2 to solve) y = 2