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 = -34y
-27 = -34y + y

Combine like terms: -34y + y = -33y
-27 = -33y

Solving
-27 = -33y

Solving for variable 'y'.

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

Add '33y' to each side of the equation.
-27 + 33y = -33y + 33y

Combine like terms: -33y + 33y = 0
-27 + 33y = 0

Add '27' to each side of the equation.
-27 + 27 + 33y = 0 + 27

Combine like terms: -27 + 27 = 0
0 + 33y = 0 + 27
33y = 0 + 27

Combine like terms: 0 + 27 = 27
33y = 27

Divide each side by '33'.
y = 0.8181818182

Simplifying
y = 0.8181818182