9r-18r=45

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Solution for 9r-18r=45 equation: 


Simplifying
9r + -18r = 45

Combine like terms: 9r + -18r = -9r
-9r = 45

Solving
-9r = 45

Solving for variable 'r'.

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

Divide each side by '-9'.
r = -5

Simplifying
r = -5

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