90-117=-4(-4y)-9(2y)+y

Solution for 90-117=-4(-4y)-9(2y)+y equation:

Simplifying
90 + -117 = -4(-4y) + -9(2y) + y

Combine like terms: 90 + -117 = -27
-27 = -4(-4y) + -9(2y) + y

Remove parenthesis around (-4y)
-27 = -4 * -4y + -9(2y) + y

Multiply -4 * -4
-27 = 16y + -9(2y) + y

Remove parenthesis around (2y)
-27 = 16y + -9 * 2y + y

Multiply -9 * 2
-27 = 16y + -18y + y

Combine like terms: 16y + -18y = -2y
-27 = -2y + y

Combine like terms: -2y + y = -1y
-27 = -1y

Solving
-27 = -1y

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add 'y' to each side of the equation.
-27 + y = -1y + y

Combine like terms: -1y + y = 0
-27 + y = 0

Add '27' to each side of the equation.
-27 + 27 + y = 0 + 27

Combine like terms: -27 + 27 = 0
0 + y = 0 + 27
y = 0 + 27

Combine like terms: 0 + 27 = 27
y = 27

Simplifying
y = 27