9y+7=31+y

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Solution for 9y+7=31+y equation:


Simplifying
9y + 7 = 31 + y

Reorder the terms:
7 + 9y = 31 + y

Solving
7 + 9y = 31 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
7 + 9y + -1y = 31 + y + -1y

Combine like terms: 9y + -1y = 8y
7 + 8y = 31 + y + -1y

Combine like terms: y + -1y = 0
7 + 8y = 31 + 0
7 + 8y = 31

Add '-7' to each side of the equation.
7 + -7 + 8y = 31 + -7

Combine like terms: 7 + -7 = 0
0 + 8y = 31 + -7
8y = 31 + -7

Combine like terms: 31 + -7 = 24
8y = 24

Divide each side by '8'.
y = 3

Simplifying
y = 3

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