Rsquared+12r+36=Rsquared+144

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Solution for Rsquared+12r+36=Rsquared+144 equation: 


Simplifying
Rsquared + 12r + 36 = Rsquared + 144

Reorder the terms:
36 + adeqrsuR + 12r = Rsquared + 144

Reorder the terms:
36 + adeqrsuR + 12r = 144 + adeqrsuR

Add '-1adeqrsuR' to each side of the equation.
36 + adeqrsuR + -1adeqrsuR + 12r = 144 + adeqrsuR + -1adeqrsuR

Combine like terms: adeqrsuR + -1adeqrsuR = 0
36 + 0 + 12r = 144 + adeqrsuR + -1adeqrsuR
36 + 12r = 144 + adeqrsuR + -1adeqrsuR

Combine like terms: adeqrsuR + -1adeqrsuR = 0
36 + 12r = 144 + 0
36 + 12r = 144

Solving
36 + 12r = 144

Solving for variable 'r'.

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

Add '-36' to each side of the equation.
36 + -36 + 12r = 144 + -36

Combine like terms: 36 + -36 = 0
0 + 12r = 144 + -36
12r = 144 + -36

Combine like terms: 144 + -36 = 108
12r = 108

Divide each side by '12'.
r = 9

Simplifying
r = 9

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