3y+9-y=9+y+3

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Solution for 3y+9-y=9+y+3 equation:


Simplifying
3y + 9 + -1y = 9 + y + 3

Reorder the terms:
9 + 3y + -1y = 9 + y + 3

Combine like terms: 3y + -1y = 2y
9 + 2y = 9 + y + 3

Reorder the terms:
9 + 2y = 9 + 3 + y

Combine like terms: 9 + 3 = 12
9 + 2y = 12 + y

Solving
9 + 2y = 12 + 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.
9 + 2y + -1y = 12 + y + -1y

Combine like terms: 2y + -1y = 1y
9 + 1y = 12 + y + -1y

Combine like terms: y + -1y = 0
9 + 1y = 12 + 0
9 + 1y = 12

Add '-9' to each side of the equation.
9 + -9 + 1y = 12 + -9

Combine like terms: 9 + -9 = 0
0 + 1y = 12 + -9
1y = 12 + -9

Combine like terms: 12 + -9 = 3
1y = 3

Divide each side by '1'.
y = 3

Simplifying
y = 3

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