-5y+7(-7y-7)=-9-3(1-y)

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Solution for -5y+7(-7y-7)=-9-3(1-y) equation:


Simplifying
-5y + 7(-7y + -7) = -9 + -3(1 + -1y)

Reorder the terms:
-5y + 7(-7 + -7y) = -9 + -3(1 + -1y)
-5y + (-7 * 7 + -7y * 7) = -9 + -3(1 + -1y)
-5y + (-49 + -49y) = -9 + -3(1 + -1y)

Reorder the terms:
-49 + -5y + -49y = -9 + -3(1 + -1y)

Combine like terms: -5y + -49y = -54y
-49 + -54y = -9 + -3(1 + -1y)
-49 + -54y = -9 + (1 * -3 + -1y * -3)
-49 + -54y = -9 + (-3 + 3y)

Combine like terms: -9 + -3 = -12
-49 + -54y = -12 + 3y

Solving
-49 + -54y = -12 + 3y

Solving for variable 'y'.

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

Add '-3y' to each side of the equation.
-49 + -54y + -3y = -12 + 3y + -3y

Combine like terms: -54y + -3y = -57y
-49 + -57y = -12 + 3y + -3y

Combine like terms: 3y + -3y = 0
-49 + -57y = -12 + 0
-49 + -57y = -12

Add '49' to each side of the equation.
-49 + 49 + -57y = -12 + 49

Combine like terms: -49 + 49 = 0
0 + -57y = -12 + 49
-57y = -12 + 49

Combine like terms: -12 + 49 = 37
-57y = 37

Divide each side by '-57'.
y = -0.649122807

Simplifying
y = -0.649122807

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