89-116=-4(-4y)-9(2y)

Solution for 89-116=-4(-4y)-9(2y) equation:

Simplifying
89 + -116 = -4(-4y) + -9(2y)

Combine like terms: 89 + -116 = -27
-27 = -4(-4y) + -9(2y)

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

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

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

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

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

Solving
-27 = -2y

Solving for variable 'y'.

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

Add '2y' to each side of the equation.
-27 + 2y = -2y + 2y

Combine like terms: -2y + 2y = 0
-27 + 2y = 0

Add '27' to each side of the equation.
-27 + 27 + 2y = 0 + 27

Combine like terms: -27 + 27 = 0
0 + 2y = 0 + 27
2y = 0 + 27

Combine like terms: 0 + 27 = 27
2y = 27

Divide each side by '2'.
y = 13.5

Simplifying
y = 13.5