-4r-7=5r

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Solution for -4r-7=5r equation: 



-4r-7=5r

We move all terms to the left:

-4r-7-(5r)=0

We add all the numbers together, and all the variables

-9r-7=0

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

-9r=7

r=7/-9

r=-7/9

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