(5x+21)/12=(x+7)/8

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Solution for (5x+21)/12=(x+7)/8 equation: 



(5x+21)/12=(x+7)/8

We move all terms to the left:

(5x+21)/12-((x+7)/8)=0

We calculate fractions


5x/()+(-((x+7)*12)/()=0



We calculate terms in parentheses: +(-((x+7)*12)/(), so:

-((x+7)*12)/(

We multiply all the terms by the denominator


-((x+7)*12)



We calculate terms in parentheses: -((x+7)*12), so:

(x+7)*12

We multiply parentheses

12x+84

Back to the equation:

-(12x+84)



We get rid of parentheses

-12x-84

Back to the equation:

+(-12x-84)



We get rid of parentheses

5x/()-12x-84=0

We multiply all the terms by the denominator


5x-12x*()-84*()=0

We add all the numbers together, and all the variables

5x-12x*()=0

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