900=(x+20)12

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Solution for 900=(x+20)12 equation: 



900=(x+20)12

We move all terms to the left:

900-((x+20)12)=0



We calculate terms in parentheses: -((x+20)12), so:

(x+20)12

We multiply parentheses

12x+240

Back to the equation:

-(12x+240)



We get rid of parentheses

-12x-240+900=0

We add all the numbers together, and all the variables

-12x+660=0

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

-12x=-660

x=-660/-12

x=+55

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