5/7=(w+3)/8

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Solution for 5/7=(w+3)/8 equation: 



5/7=(w+3)/8

We move all terms to the left:

5/7-((w+3)/8)=0

We calculate fractions


(-((w+3)*7)/()+()/()=0



We calculate terms in parentheses: +(-((w+3)*7)/()+()/(), so:

-((w+3)*7)/()+()/(

We add all the numbers together, and all the variables

-((w+3)*7)/()+1

We multiply all the terms by the denominator


-((w+3)*7)+1*()



We calculate terms in parentheses: -((w+3)*7), so:

(w+3)*7

We multiply parentheses

7w+21

Back to the equation:

-(7w+21)



We add all the numbers together, and all the variables

-(7w+21)

We get rid of parentheses

-7w-21

Back to the equation:

+(-7w-21)



We get rid of parentheses

-7w-21=0

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

-7w=21

w=21/-7

w=-3

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