7(x+10)+(3x+20)=180

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Solution for 7(x+10)+(3x+20)=180 equation: 



7(x+10)+(3x+20)=180

We move all terms to the left:

7(x+10)+(3x+20)-(180)=0

We multiply parentheses

7x+(3x+20)+70-180=0

We get rid of parentheses

7x+3x+20+70-180=0

We add all the numbers together, and all the variables

10x-90=0

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

10x=90

x=90/10

x=9

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