12r+r=65

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Solution for 12r+r=65 equation: 


Simplifying
12r + r = 65

Combine like terms: 12r + r = 13r
13r = 65

Solving
13r = 65

Solving for variable 'r'.

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

Divide each side by '13'.
r = 5

Simplifying
r = 5

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