3(-1)=2x+9

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Solution for 3(-1)=2x+9 equation: 



3(-1)=2x+9

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(2x+9)-3=0

We get rid of parentheses

-2x-9-3=0

We add all the numbers together, and all the variables

-2x-12=0

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

-2x=12

x=12/-2

x=-6

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