-7.5r-5+6=21.5

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Solution for -7.5r-5+6=21.5 equation: 



-7.5r-5+6=21.5

We move all terms to the left:

-7.5r-5+6-(21.5)=0

We add all the numbers together, and all the variables

-7.5r-20.5=0

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

-7.5r=20.5

r=20.5/-7.5

r=-2+3.6666666666667/5

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