3(x+10)=12+x

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Solution for 3(x+10)=12+x equation: 



3(x+10)=12+x

We move all terms to the left:

3(x+10)-(12+x)=0

We add all the numbers together, and all the variables

3(x+10)-(x+12)=0

We multiply parentheses

3x-(x+12)+30=0

We get rid of parentheses

3x-x-12+30=0

We add all the numbers together, and all the variables

2x+18=0

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

2x=-18

x=-18/2

x=-9

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