12r+71r=495

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Solution for 12r+71r=495 equation: 



12r+71r=495

We move all terms to the left:

12r+71r-(495)=0

We add all the numbers together, and all the variables

83r-495=0

We move all terms containing r to the left, all other terms to the right

83r=495

r=495/83

r=5+80/83

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