3(x-1)=x+x+9

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Solution for 3(x-1)=x+x+9 equation: 



3(x-1)=x+x+9

We move all terms to the left:

3(x-1)-(x+x+9)=0

We add all the numbers together, and all the variables

3(x-1)-(2x+9)=0

We multiply parentheses

3x-(2x+9)-3=0

We get rid of parentheses

3x-2x-9-3=0

We add all the numbers together, and all the variables

x-12=0

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

x=12

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