99-115=-4(-4y)-9(2y)+y

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Solution for 99-115=-4(-4y)-9(2y)+y equation: 


Simplifying
99 + -115 = -4(-4y) + -9(2y) + y

Combine like terms: 99 + -115 = -16
-16 = -4(-4y) + -9(2y) + y

Remove parenthesis around (-4y)
-16 = -4 * -4y + -9(2y) + y

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

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

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

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

Combine like terms: -2y + y = -1y
-16 = -1y

Solving
-16 = -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.
-16 + y = -1y + y

Combine like terms: -1y + y = 0
-16 + y = 0

Add '16' to each side of the equation.
-16 + 16 + y = 0 + 16

Combine like terms: -16 + 16 = 0
0 + y = 0 + 16
y = 0 + 16

Combine like terms: 0 + 16 = 16
y = 16

Simplifying
y = 16

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