3(y-1)=9+y

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Solution for 3(y-1)=9+y equation:


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

Reorder the terms:
3(-1 + y) = 9 + y
(-1 * 3 + y * 3) = 9 + y
(-3 + 3y) = 9 + y

Solving
-3 + 3y = 9 + 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.
-3 + 3y + -1y = 9 + y + -1y

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

Combine like terms: y + -1y = 0
-3 + 2y = 9 + 0
-3 + 2y = 9

Add '3' to each side of the equation.
-3 + 3 + 2y = 9 + 3

Combine like terms: -3 + 3 = 0
0 + 2y = 9 + 3
2y = 9 + 3

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

Divide each side by '2'.
y = 6

Simplifying
y = 6

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