1/4=(r+3)/19

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Solution for 1/4=(r+3)/19 equation: 



1/4=(r+3)/19

We move all terms to the left:

1/4-((r+3)/19)=0

We calculate fractions


(-((r+3)*4)/()+()/()=0



We calculate terms in parentheses: +(-((r+3)*4)/()+()/(), so:

-((r+3)*4)/()+()/(

We add all the numbers together, and all the variables

-((r+3)*4)/()+1

We multiply all the terms by the denominator


-((r+3)*4)+1*()



We calculate terms in parentheses: -((r+3)*4), so:

(r+3)*4

We multiply parentheses

4r+12

Back to the equation:

-(4r+12)



We add all the numbers together, and all the variables

-(4r+12)

We get rid of parentheses

-4r-12

Back to the equation:

+(-4r-12)



We get rid of parentheses

-4r-12=0

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

-4r=12

r=12/-4

r=-3

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