(x-30)+(x-30)+(x-30)+2x=540

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Solution for (x-30)+(x-30)+(x-30)+2x=540 equation: 



(x-30)+(x-30)+(x-30)+2x=540

We move all terms to the left:

(x-30)+(x-30)+(x-30)+2x-(540)=0

We add all the numbers together, and all the variables

2x+(x-30)+(x-30)+(x-30)-540=0

We get rid of parentheses

2x+x+x+x-30-30-30-540=0

We add all the numbers together, and all the variables

5x-630=0

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

5x=630

x=630/5

x=126

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