Simplifying
y = 5 + 2(3 + -4x)
y = 5 + (3 * 2 + -4x * 2)
y = 5 + (6 + -8x)
Combine like terms: 5 + 6 = 11
y = 11 + -8x
Solving
y = 11 + -8x
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Simplifying
y = 11 + -8x
