1+r/9=-72

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Solution for 1+r/9=-72 equation: 



1+r/9=-72

We move all terms to the left:

1+r/9-(-72)=0

We add all the numbers together, and all the variables

r/9+73=0

We multiply all the terms by the denominator


r+73*9=0

We add all the numbers together, and all the variables

r+657=0

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

r=-657

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