3(x+10)=20-7x

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



3(x+10)=20-7x

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

3x-(-7x+20)+30=0

We get rid of parentheses

3x+7x-20+30=0

We add all the numbers together, and all the variables

10x+10=0

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

10x=-10

x=-10/10

x=-1

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