9y-7y=42

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Solution for 9y-7y=42 equation: 


Simplifying
9y + -7y = 42

Combine like terms: 9y + -7y = 2y
2y = 42

Solving
2y = 42

Solving for variable 'y'.

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

Divide each side by '2'.
y = 21

Simplifying
y = 21

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