2y-7y=-100

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Solution for 2y-7y=-100 equation: 


Simplifying
2y + -7y = -100

Combine like terms: 2y + -7y = -5y
-5y = -100

Solving
-5y = -100

Solving for variable 'y'.

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

Divide each side by '-5'.
y = 20

Simplifying
y = 20

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