3x+9x+6=20-(-3x)+4x

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Solution for 3x+9x+6=20-(-3x)+4x equation: 



3x+9x+6=20-(-3x)+4x

We move all terms to the left:

3x+9x+6-(20-(-3x)+4x)=0

We add all the numbers together, and all the variables

12x-(20-(-3x)+4x)+6=0



We calculate terms in parentheses: -(20-(-3x)+4x), so:

20-(-3x)+4x

determiningTheFunctionDomain
-(-3x)+4x+20

We add all the numbers together, and all the variables

4x-(-3x)+20

We get rid of parentheses

4x+3x+20

We add all the numbers together, and all the variables

7x+20

Back to the equation:

-(7x+20)



We get rid of parentheses

12x-7x-20+6=0

We add all the numbers together, and all the variables

5x-14=0

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

5x=14

x=14/5

x=2+4/5

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