-31=-7y+5(y-7)

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Solution for -31=-7y+5(y-7) equation:


Simplifying
-31 = -7y + 5(y + -7)

Reorder the terms:
-31 = -7y + 5(-7 + y)
-31 = -7y + (-7 * 5 + y * 5)
-31 = -7y + (-35 + 5y)

Reorder the terms:
-31 = -35 + -7y + 5y

Combine like terms: -7y + 5y = -2y
-31 = -35 + -2y

Solving
-31 = -35 + -2y

Solving for variable 'y'.

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

Add '2y' to each side of the equation.
-31 + 2y = -35 + -2y + 2y

Combine like terms: -2y + 2y = 0
-31 + 2y = -35 + 0
-31 + 2y = -35

Add '31' to each side of the equation.
-31 + 31 + 2y = -35 + 31

Combine like terms: -31 + 31 = 0
0 + 2y = -35 + 31
2y = -35 + 31

Combine like terms: -35 + 31 = -4
2y = -4

Divide each side by '2'.
y = -2

Simplifying
y = -2

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