(y-3)+y=9

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


Simplifying
(y + -3) + y = 9

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

Remove parenthesis around (-3 + y)
-3 + y + y = 9

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

Solving
-3 + 2y = 9

Solving for variable 'y'.

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

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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