4r+8r=108

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Solution for 4r+8r=108 equation: 


Simplifying
4r + 8r = 108

Combine like terms: 4r + 8r = 12r
12r = 108

Solving
12r = 108

Solving for variable 'r'.

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

Divide each side by '12'.
r = 9

Simplifying
r = 9

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