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

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


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

Reorder the terms:
-5y + -7(7 + 9y) = 1 + 3(-7 + -1y)
-5y + (7 * -7 + 9y * -7) = 1 + 3(-7 + -1y)
-5y + (-49 + -63y) = 1 + 3(-7 + -1y)

Reorder the terms:
-49 + -5y + -63y = 1 + 3(-7 + -1y)

Combine like terms: -5y + -63y = -68y
-49 + -68y = 1 + 3(-7 + -1y)
-49 + -68y = 1 + (-7 * 3 + -1y * 3)
-49 + -68y = 1 + (-21 + -3y)

Combine like terms: 1 + -21 = -20
-49 + -68y = -20 + -3y

Solving
-49 + -68y = -20 + -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 + -68y + 3y = -20 + -3y + 3y

Combine like terms: -68y + 3y = -65y
-49 + -65y = -20 + -3y + 3y

Combine like terms: -3y + 3y = 0
-49 + -65y = -20 + 0
-49 + -65y = -20

Add '49' to each side of the equation.
-49 + 49 + -65y = -20 + 49

Combine like terms: -49 + 49 = 0
0 + -65y = -20 + 49
-65y = -20 + 49

Combine like terms: -20 + 49 = 29
-65y = 29

Divide each side by '-65'.
y = -0.4461538462

Simplifying
y = -0.4461538462

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