(X+9)/3=(x+5)/7

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Solution for (X+9)/3=(x+5)/7 equation: 



(X+9)/3=(X+5)/7

We move all terms to the left:

(X+9)/3-((X+5)/7)=0

We calculate fractions


X/()+(-((X+5)*3)/()=0



We calculate terms in parentheses: +(-((X+5)*3)/(), so:

-((X+5)*3)/(

We multiply all the terms by the denominator


-((X+5)*3)



We calculate terms in parentheses: -((X+5)*3), so:

(X+5)*3

We multiply parentheses

3X+15

Back to the equation:

-(3X+15)



We get rid of parentheses

-3X-15

Back to the equation:

+(-3X-15)



We get rid of parentheses

X/()-3X-15=0

We multiply all the terms by the denominator


X-3X*()-15*()=0

We add all the numbers together, and all the variables

X-3X*()=0

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