-3r-21=49

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Solution for -3r-21=49 equation: 



-3r-21=49

We move all terms to the left:

-3r-21-(49)=0

We add all the numbers together, and all the variables

-3r-70=0

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

-3r=70

r=70/-3

r=-23+1/3

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