3(-1+1x)=12

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Solution for 3(-1+1x)=12 equation: 



3(-1+1x)=12

We move all terms to the left:

3(-1+1x)-(12)=0

We add all the numbers together, and all the variables

3(x-1)-12=0

We multiply parentheses

3x-3-12=0

We add all the numbers together, and all the variables

3x-15=0

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

3x=15

x=15/3

x=5

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