3+8r=30

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Solution for 3+8r=30 equation: 



3+8r=30

We move all terms to the left:

3+8r-(30)=0

We add all the numbers together, and all the variables

8r-27=0

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

8r=27

r=27/8

r=3+3/8

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