7r+18=74

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Solution for 7r+18=74 equation: 



7r+18=74

We move all terms to the left:

7r+18-(74)=0

We add all the numbers together, and all the variables

7r-56=0

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

7r=56

r=56/7

r=8

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