<span>Simplifying
y = 3x + -9 + 8x
Reorder the terms:
y = -9 + 3x + 8x
Combine like terms: 3x + 8x = 11x
y = -9 + 11x
Solving
y = -9 + 11x
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Simplifying
y = -9 + 11x</span>
