15y+9=129

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Solution for 15y+9=129 equation: 


Simplifying
15y + 9 = 129

Reorder the terms:
9 + 15y = 129

Solving
9 + 15y = 129

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 + 15y = 129 + -9

Combine like terms: 9 + -9 = 0
0 + 15y = 129 + -9
15y = 129 + -9

Combine like terms: 129 + -9 = 120
15y = 120

Divide each side by '15'.
y = 8

Simplifying
y = 8

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