12-3(x+1)=18

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Solution for 12-3(x+1)=18 equation: 



12-3(x+1)=18

We move all terms to the left:

12-3(x+1)-(18)=0

We add all the numbers together, and all the variables

-3(x+1)-6=0

We multiply parentheses

-3x-3-6=0

We add all the numbers together, and all the variables

-3x-9=0

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

-3x=9

x=9/-3

x=-3

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