4=5+r/18

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Solution for 4=5+r/18 equation: 



4=5+r/18

We move all terms to the left:

4-(5+r/18)=0

We add all the numbers together, and all the variables

-(r/18+5)+4=0

We get rid of parentheses

-r/18-5+4=0

We multiply all the terms by the denominator


-r-5*18+4*18=0

We add all the numbers together, and all the variables

-1r-18=0

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

-r=18

r=18/-1

r=-18

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