9y+31=2(y-2)

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Solution for 9y+31=2(y-2) equation:


Simplifying
9y + 31 = 2(y + -2)

Reorder the terms:
31 + 9y = 2(y + -2)

Reorder the terms:
31 + 9y = 2(-2 + y)
31 + 9y = (-2 * 2 + y * 2)
31 + 9y = (-4 + 2y)

Solving
31 + 9y = -4 + 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 + 9y + -2y = -4 + 2y + -2y

Combine like terms: 9y + -2y = 7y
31 + 7y = -4 + 2y + -2y

Combine like terms: 2y + -2y = 0
31 + 7y = -4 + 0
31 + 7y = -4

Add '-31' to each side of the equation.
31 + -31 + 7y = -4 + -31

Combine like terms: 31 + -31 = 0
0 + 7y = -4 + -31
7y = -4 + -31

Combine like terms: -4 + -31 = -35
7y = -35

Divide each side by '7'.
y = -5

Simplifying
y = -5

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