117-9r=27

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Solution for 117-9r=27 equation: 


Simplifying
117 + -9r = 27

Solving
117 + -9r = 27

Solving for variable 'r'.

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

Add '-117' to each side of the equation.
117 + -117 + -9r = 27 + -117

Combine like terms: 117 + -117 = 0
0 + -9r = 27 + -117
-9r = 27 + -117

Combine like terms: 27 + -117 = -90
-9r = -90

Divide each side by '-9'.
r = 10

Simplifying
r = 10

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