y=-7r-2r

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


Simplifying
y = -7r + -2r

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

Solving
y = -9r

Solving for variable 'y'.

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

Simplifying
y = -9r

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