6y+9y=84+8y

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Solution for 6y+9y=84+8y equation: 


Simplifying
6y + 9y = 84 + 8y

Combine like terms: 6y + 9y = 15y
15y = 84 + 8y

Solving
15y = 84 + 8y

Solving for variable 'y'.

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

Add '-8y' to each side of the equation.
15y + -8y = 84 + 8y + -8y

Combine like terms: 15y + -8y = 7y
7y = 84 + 8y + -8y

Combine like terms: 8y + -8y = 0
7y = 84 + 0
7y = 84

Divide each side by '7'.
y = 12

Simplifying
y = 12

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