-2r-7r=-18

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Solution for -2r-7r=-18 equation: 


Simplifying
-2r + -7r = -18

Combine like terms: -2r + -7r = -9r
-9r = -18

Solving
-9r = -18

Solving for variable 'r'.

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

Divide each side by '-9'.
r = 2

Simplifying
r = 2

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