-3y+7y=a

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Solution for -3y+7y=a equation: 


Simplifying
-3y + 7y = a

Combine like terms: -3y + 7y = 4y
4y = a

Solving
4y = a

Solving for variable 'y'.

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

Divide each side by '4'.
y = 0.25a

Simplifying
y = 0.25a

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