5y-9-3y=12

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Solution for 5y-9-3y=12 equation:


Simplifying
5y + -9 + -3y = 12

Reorder the terms:
-9 + 5y + -3y = 12

Combine like terms: 5y + -3y = 2y
-9 + 2y = 12

Solving
-9 + 2y = 12

Solving for variable 'y'.

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

Add '9' to each side of the equation.
-9 + 9 + 2y = 12 + 9

Combine like terms: -9 + 9 = 0
0 + 2y = 12 + 9
2y = 12 + 9

Combine like terms: 12 + 9 = 21
2y = 21

Divide each side by '2'.
y = 10.5

Simplifying
y = 10.5

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