-3(-7y+7)-5y=4(y-7)-7

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Solution for -3(-7y+7)-5y=4(y-7)-7 equation:


Simplifying
-3(-7y + 7) + -5y = 4(y + -7) + -7

Reorder the terms:
-3(7 + -7y) + -5y = 4(y + -7) + -7
(7 * -3 + -7y * -3) + -5y = 4(y + -7) + -7
(-21 + 21y) + -5y = 4(y + -7) + -7

Combine like terms: 21y + -5y = 16y
-21 + 16y = 4(y + -7) + -7

Reorder the terms:
-21 + 16y = 4(-7 + y) + -7
-21 + 16y = (-7 * 4 + y * 4) + -7
-21 + 16y = (-28 + 4y) + -7

Reorder the terms:
-21 + 16y = -28 + -7 + 4y

Combine like terms: -28 + -7 = -35
-21 + 16y = -35 + 4y

Solving
-21 + 16y = -35 + 4y

Solving for variable 'y'.

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

Add '-4y' to each side of the equation.
-21 + 16y + -4y = -35 + 4y + -4y

Combine like terms: 16y + -4y = 12y
-21 + 12y = -35 + 4y + -4y

Combine like terms: 4y + -4y = 0
-21 + 12y = -35 + 0
-21 + 12y = -35

Add '21' to each side of the equation.
-21 + 21 + 12y = -35 + 21

Combine like terms: -21 + 21 = 0
0 + 12y = -35 + 21
12y = -35 + 21

Combine like terms: -35 + 21 = -14
12y = -14

Divide each side by '12'.
y = -1.166666667

Simplifying
y = -1.166666667

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