x+x+(6x-21)=180

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Solution for x+x+(6x-21)=180 equation: 



x+x+(6x-21)=180

We move all terms to the left:

x+x+(6x-21)-(180)=0

We add all the numbers together, and all the variables

2x+(6x-21)-180=0

We get rid of parentheses

2x+6x-21-180=0

We add all the numbers together, and all the variables

8x-201=0

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

8x=201

x=201/8

x=25+1/8

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