-3y-9(-4y-5)=8-2(4-y)

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Solution for -3y-9(-4y-5)=8-2(4-y) equation:


Simplifying
-3y + -9(-4y + -5) = 8 + -2(4 + -1y)

Reorder the terms:
-3y + -9(-5 + -4y) = 8 + -2(4 + -1y)
-3y + (-5 * -9 + -4y * -9) = 8 + -2(4 + -1y)
-3y + (45 + 36y) = 8 + -2(4 + -1y)

Reorder the terms:
45 + -3y + 36y = 8 + -2(4 + -1y)

Combine like terms: -3y + 36y = 33y
45 + 33y = 8 + -2(4 + -1y)
45 + 33y = 8 + (4 * -2 + -1y * -2)
45 + 33y = 8 + (-8 + 2y)

Combine like terms: 8 + -8 = 0
45 + 33y = 0 + 2y
45 + 33y = 2y

Solving
45 + 33y = 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.
45 + 33y + -2y = 2y + -2y

Combine like terms: 33y + -2y = 31y
45 + 31y = 2y + -2y

Combine like terms: 2y + -2y = 0
45 + 31y = 0

Add '-45' to each side of the equation.
45 + -45 + 31y = 0 + -45

Combine like terms: 45 + -45 = 0
0 + 31y = 0 + -45
31y = 0 + -45

Combine like terms: 0 + -45 = -45
31y = -45

Divide each side by '31'.
y = -1.451612903

Simplifying
y = -1.451612903

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