7y+2y=21

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Solution for 7y+2y=21 equation: 


Simplifying
7y + 2y = 21

Combine like terms: 7y + 2y = 9y
9y = 21

Solving
9y = 21

Solving for variable 'y'.

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

Divide each side by '9'.
y = 2.333333333

Simplifying
y = 2.333333333

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