R(r-9)r=11

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Solution for R(r-9)r=11 equation: 


Simplifying
R(r + -9) * r = 11

Reorder the terms:
R(-9 + r) * r = 11

Reorder the terms for easier multiplication:
R * r(-9 + r) = 11

Multiply R * r
rR(-9 + r) = 11
(-9 * rR + r * rR) = 11
(-9rR + r2R) = 11

Solving
-9rR + r2R = 11

Solving for variable 'r'.

Reorder the terms:
-11 + -9rR + r2R = 11 + -11

Combine like terms: 11 + -11 = 0
-11 + -9rR + r2R = 0

The solution to this equation could not be determined.

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