5/7=(3x+3)/84

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Solution for 5/7=(3x+3)/84 equation: 



5/7=(3x+3)/84

We move all terms to the left:

5/7-((3x+3)/84)=0

We calculate fractions


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



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

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

We add all the numbers together, and all the variables

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

We multiply all the terms by the denominator


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



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

(3x+3)*7

We multiply parentheses

21x+21

Back to the equation:

-(21x+21)



We add all the numbers together, and all the variables

-(21x+21)

We get rid of parentheses

-21x-21

Back to the equation:

+(-21x-21)



We get rid of parentheses

-21x-21=0

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

-21x=21

x=21/-21

x=-1

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