-21+48=3r

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Solution for -21+48=3r equation:



-21+48=3r
We move all terms to the left:
-21+48-(3r)=0
We add all the numbers together, and all the variables
-3r+27=0
We move all terms containing r to the left, all other terms to the right
-3r=-27
r=-27/-3
r=+9

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