2y+7y-3=15

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Solution for 2y+7y-3=15 equation: 


Simplifying
2y + 7y + -3 = 15

Reorder the terms:
-3 + 2y + 7y = 15

Combine like terms: 2y + 7y = 9y
-3 + 9y = 15

Solving
-3 + 9y = 15

Solving for variable 'y'.

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

Add '3' to each side of the equation.
-3 + 3 + 9y = 15 + 3

Combine like terms: -3 + 3 = 0
0 + 9y = 15 + 3
9y = 15 + 3

Combine like terms: 15 + 3 = 18
9y = 18

Divide each side by '9'.
y = 2

Simplifying
y = 2

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