x+3x+3x-20=127

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Solution for x+3x+3x-20=127 equation: 



x+3x+3x-20=127

We move all terms to the left:

x+3x+3x-20-(127)=0

We add all the numbers together, and all the variables

7x-147=0

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

7x=147

x=147/7

x=21

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