7y-3y=122

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Solution for 7y-3y=122 equation: 


Simplifying
7y + -3y = 122

Combine like terms: 7y + -3y = 4y
4y = 122

Solving
4y = 122

Solving for variable 'y'.

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

Divide each side by '4'.
y = 30.5

Simplifying
y = 30.5

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