12-3(x-4)=9

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Solution for 12-3(x-4)=9 equation: 



12-3(x-4)=9

We move all terms to the left:

12-3(x-4)-(9)=0

We add all the numbers together, and all the variables

-3(x-4)+3=0

We multiply parentheses

-3x+12+3=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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