9+r/12=-3

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Solution for 9+r/12=-3 equation: 



9+r/12=-3

We move all terms to the left:

9+r/12-(-3)=0

We add all the numbers together, and all the variables

r/12+12=0

We multiply all the terms by the denominator


r+12*12=0

We add all the numbers together, and all the variables

r+144=0

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

r=-144

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