18+x+x+39+(-3+4x)=180

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Solution for 18+x+x+39+(-3+4x)=180 equation: 



18+x+x+39+(-3+4x)=180

We move all terms to the left:

18+x+x+39+(-3+4x)-(180)=0

We add all the numbers together, and all the variables

x+x+(4x-3)+18+39-180=0

We add all the numbers together, and all the variables

2x+(4x-3)-123=0

We get rid of parentheses

2x+4x-3-123=0

We add all the numbers together, and all the variables

6x-126=0

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

6x=126

x=126/6

x=21

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