5r+7r=-12

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Solution for 5r+7r=-12 equation:



5r+7r=-12
We move all terms to the left:
5r+7r-(-12)=0
We add all the numbers together, and all the variables
12r+12=0
We move all terms containing r to the left, all other terms to the right
12r=-12
r=-12/12
r=-1

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