3y-9=7+2y-y

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Solution for 3y-9=7+2y-y equation:


Simplifying
3y + -9 = 7 + 2y + -1y

Reorder the terms:
-9 + 3y = 7 + 2y + -1y

Combine like terms: 2y + -1y = 1y
-9 + 3y = 7 + 1y

Solving
-9 + 3y = 7 + 1y

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 + 3y + -1y = 7 + 1y + -1y

Combine like terms: 3y + -1y = 2y
-9 + 2y = 7 + 1y + -1y

Combine like terms: 1y + -1y = 0
-9 + 2y = 7 + 0
-9 + 2y = 7

Add '9' to each side of the equation.
-9 + 9 + 2y = 7 + 9

Combine like terms: -9 + 9 = 0
0 + 2y = 7 + 9
2y = 7 + 9

Combine like terms: 7 + 9 = 16
2y = 16

Divide each side by '2'.
y = 8

Simplifying
y = 8

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