3(x+6)+3x=3(-9-x)

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Solution for 3(x+6)+3x=3(-9-x) equation: 



3(x+6)+3x=3(-9-x)

We move all terms to the left:

3(x+6)+3x-(3(-9-x))=0

We add all the numbers together, and all the variables

3(x+6)+3x-(3(-1x-9))=0

We add all the numbers together, and all the variables

3x+3(x+6)-(3(-1x-9))=0

We multiply parentheses

3x+3x-(3(-1x-9))+18=0



We calculate terms in parentheses: -(3(-1x-9)), so:

3(-1x-9)

We multiply parentheses

-3x-27

Back to the equation:

-(-3x-27)



We add all the numbers together, and all the variables

6x-(-3x-27)+18=0

We get rid of parentheses

6x+3x+27+18=0

We add all the numbers together, and all the variables

9x+45=0

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

9x=-45

x=-45/9

x=-5

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