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

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



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

We move all terms to the left:

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



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

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

We get rid of parentheses

x+x+x+x+x-30-30-30-30-30

We add all the numbers together, and all the variables

5x-150

Back to the equation:

-(5x-150)



We get rid of parentheses

-5x+150+540=0

We add all the numbers together, and all the variables

-5x+690=0

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

-5x=-690

x=-690/-5

x=+138

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