8r-14=3r+21

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Solution for 8r-14=3r+21 equation: 



8r-14=3r+21

We move all terms to the left:

8r-14-(3r+21)=0

We get rid of parentheses

8r-3r-21-14=0

We add all the numbers together, and all the variables

5r-35=0

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

5r=35

r=35/5

r=7

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