18-7=3+8r

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Solution for 18-7=3+8r equation: 



18-7=3+8r

We move all terms to the left:

18-7-(3+8r)=0

We add all the numbers together, and all the variables

-(8r+3)+18-7=0

We add all the numbers together, and all the variables

-(8r+3)+11=0

We get rid of parentheses

-8r-3+11=0

We add all the numbers together, and all the variables

-8r+8=0

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

-8r=-8

r=-8/-8

r=1

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