8r-14=42

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Solution for 8r-14=42 equation: 



8r-14=42

We move all terms to the left:

8r-14-(42)=0

We add all the numbers together, and all the variables

8r-56=0

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

8r=56

r=56/8

r=7

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