12-3y+15=0

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Solution for 12-3y+15=0 equation:


Simplifying
12 + -3y + 15 = 0

Reorder the terms:
12 + 15 + -3y = 0

Combine like terms: 12 + 15 = 27
27 + -3y = 0

Solving
27 + -3y = 0

Solving for variable 'y'.

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

Add '-27' to each side of the equation.
27 + -27 + -3y = 0 + -27

Combine like terms: 27 + -27 = 0
0 + -3y = 0 + -27
-3y = 0 + -27

Combine like terms: 0 + -27 = -27
-3y = -27

Divide each side by '-3'.
y = 9

Simplifying
y = 9

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