31+(x+4)+(3x+9)=180

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Solution for 31+(x+4)+(3x+9)=180 equation: 



31+(x+4)+(3x+9)=180

We move all terms to the left:

31+(x+4)+(3x+9)-(180)=0

We add all the numbers together, and all the variables

(x+4)+(3x+9)-149=0

We get rid of parentheses

x+3x+4+9-149=0

We add all the numbers together, and all the variables

4x-136=0

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

4x=136

x=136/4

x=34

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