x/15=(x+30+30)/20

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Solution for x/15=(x+30+30)/20 equation: 



x/15=(x+30+30)/20

We move all terms to the left:

x/15-((x+30+30)/20)=0

We add all the numbers together, and all the variables

x/15-((x+60)/20)=0

We calculate fractions


20x^2/()+(-((x+60)*15)/()=0



We calculate terms in parentheses: +(-((x+60)*15)/(), so:

-((x+60)*15)/(

We multiply all the terms by the denominator


-((x+60)*15)



We calculate terms in parentheses: -((x+60)*15), so:

(x+60)*15

We multiply parentheses

15x+900

Back to the equation:

-(15x+900)



We get rid of parentheses

-15x-900

Back to the equation:

+(-15x-900)



We get rid of parentheses

20x^2/()-15x-900=0

We multiply all the terms by the denominator


20x^2-15x*()-900*()=0

We add all the numbers together, and all the variables

20x^2-15x*()=0

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