12y-9y-15=20.13

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Solution for 12y-9y-15=20.13 equation:


Simplifying
12y + -9y + -15 = 20.13

Reorder the terms:
-15 + 12y + -9y = 20.13

Combine like terms: 12y + -9y = 3y
-15 + 3y = 20.13

Solving
-15 + 3y = 20.13

Solving for variable 'y'.

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

Add '15' to each side of the equation.
-15 + 15 + 3y = 20.13 + 15

Combine like terms: -15 + 15 = 0
0 + 3y = 20.13 + 15
3y = 20.13 + 15

Combine like terms: 20.13 + 15 = 35.13
3y = 35.13

Divide each side by '3'.
y = 11.71

Simplifying
y = 11.71

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