56-[4+5y-2(y+2)]=-4(3y-5)-[9(y-1)-12y+15]

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Solution for 56-[4+5y-2(y+2)]=-4(3y-5)-[9(y-1)-12y+15] equation:


Simplifying
56 + -1[4 + 5y + -2(y + 2)] = -4(3y + -5) + -1[9(y + -1) + -12y + 15]

Reorder the terms:
56 + -1[4 + 5y + -2(2 + y)] = -4(3y + -5) + -1[9(y + -1) + -12y + 15]
56 + -1[4 + 5y + (2 * -2 + y * -2)] = -4(3y + -5) + -1[9(y + -1) + -12y + 15]
56 + -1[4 + 5y + (-4 + -2y)] = -4(3y + -5) + -1[9(y + -1) + -12y + 15]

Reorder the terms:
56 + -1[4 + -4 + 5y + -2y] = -4(3y + -5) + -1[9(y + -1) + -12y + 15]

Combine like terms: 4 + -4 = 0
56 + -1[0 + 5y + -2y] = -4(3y + -5) + -1[9(y + -1) + -12y + 15]
56 + -1[5y + -2y] = -4(3y + -5) + -1[9(y + -1) + -12y + 15]

Combine like terms: 5y + -2y = 3y
56 + -1[3y] = -4(3y + -5) + -1[9(y + -1) + -12y + 15]

Remove brackets around [3y]
56 + -1 * 3y = -4(3y + -5) + -1[9(y + -1) + -12y + 15]

Multiply -1 * 3
56 + -3y = -4(3y + -5) + -1[9(y + -1) + -12y + 15]

Reorder the terms:
56 + -3y = -4(-5 + 3y) + -1[9(y + -1) + -12y + 15]
56 + -3y = (-5 * -4 + 3y * -4) + -1[9(y + -1) + -12y + 15]
56 + -3y = (20 + -12y) + -1[9(y + -1) + -12y + 15]

Reorder the terms:
56 + -3y = 20 + -12y + -1[9(-1 + y) + -12y + 15]
56 + -3y = 20 + -12y + -1[(-1 * 9 + y * 9) + -12y + 15]
56 + -3y = 20 + -12y + -1[(-9 + 9y) + -12y + 15]

Reorder the terms:
56 + -3y = 20 + -12y + -1[-9 + 15 + 9y + -12y]

Combine like terms: -9 + 15 = 6
56 + -3y = 20 + -12y + -1[6 + 9y + -12y]

Combine like terms: 9y + -12y = -3y
56 + -3y = 20 + -12y + -1[6 + -3y]
56 + -3y = 20 + -12y + [6 * -1 + -3y * -1]
56 + -3y = 20 + -12y + [-6 + 3y]

Reorder the terms:
56 + -3y = 20 + -6 + -12y + 3y

Combine like terms: 20 + -6 = 14
56 + -3y = 14 + -12y + 3y

Combine like terms: -12y + 3y = -9y
56 + -3y = 14 + -9y

Solving
56 + -3y = 14 + -9y

Solving for variable 'y'.

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

Add '9y' to each side of the equation.
56 + -3y + 9y = 14 + -9y + 9y

Combine like terms: -3y + 9y = 6y
56 + 6y = 14 + -9y + 9y

Combine like terms: -9y + 9y = 0
56 + 6y = 14 + 0
56 + 6y = 14

Add '-56' to each side of the equation.
56 + -56 + 6y = 14 + -56

Combine like terms: 56 + -56 = 0
0 + 6y = 14 + -56
6y = 14 + -56

Combine like terms: 14 + -56 = -42
6y = -42

Divide each side by '6'.
y = -7

Simplifying
y = -7

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