4r+12r=80

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Solution for 4r+12r=80 equation: 


Simplifying
4r + 12r = 80

Combine like terms: 4r + 12r = 16r
16r = 80

Solving
16r = 80

Solving for variable 'r'.

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

Divide each side by '16'.
r = 5

Simplifying
r = 5

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