-2y+2(-6y+6)=8-9(7-y)

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Solution for -2y+2(-6y+6)=8-9(7-y) equation:


Simplifying
-2y + 2(-6y + 6) = 8 + -9(7 + -1y)

Reorder the terms:
-2y + 2(6 + -6y) = 8 + -9(7 + -1y)
-2y + (6 * 2 + -6y * 2) = 8 + -9(7 + -1y)
-2y + (12 + -12y) = 8 + -9(7 + -1y)

Reorder the terms:
12 + -2y + -12y = 8 + -9(7 + -1y)

Combine like terms: -2y + -12y = -14y
12 + -14y = 8 + -9(7 + -1y)
12 + -14y = 8 + (7 * -9 + -1y * -9)
12 + -14y = 8 + (-63 + 9y)

Combine like terms: 8 + -63 = -55
12 + -14y = -55 + 9y

Solving
12 + -14y = -55 + 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.
12 + -14y + -9y = -55 + 9y + -9y

Combine like terms: -14y + -9y = -23y
12 + -23y = -55 + 9y + -9y

Combine like terms: 9y + -9y = 0
12 + -23y = -55 + 0
12 + -23y = -55

Add '-12' to each side of the equation.
12 + -12 + -23y = -55 + -12

Combine like terms: 12 + -12 = 0
0 + -23y = -55 + -12
-23y = -55 + -12

Combine like terms: -55 + -12 = -67
-23y = -67

Divide each side by '-23'.
y = 2.913043478

Simplifying
y = 2.913043478

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