540=(x-30)+(x-30)+(x-30)

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Solution for 540=(x-30)+(x-30)+(x-30) equation: 



540=(x-30)+(x-30)+(x-30)

We move all terms to the left:

540-((x-30)+(x-30)+(x-30))=0



We calculate terms in parentheses: -((x-30)+(x-30)+(x-30)), so:

(x-30)+(x-30)+(x-30)

We get rid of parentheses

x+x+x-30-30-30

We add all the numbers together, and all the variables

3x-90

Back to the equation:

-(3x-90)



We get rid of parentheses

-3x+90+540=0

We add all the numbers together, and all the variables

-3x+630=0

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

-3x=-630

x=-630/-3

x=+210

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