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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

3x+4x-(x+9(-1x))-6=0

We add all the numbers together, and all the variables

7x-(x+9(-1x))-6=0



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

x+9(-1x)

We multiply parentheses

x-9x

We add all the numbers together, and all the variables

-8x

Back to the equation:

-(-8x)



We get rid of parentheses

7x+8x-6=0

We add all the numbers together, and all the variables

15x-6=0

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

15x=6

x=6/15

x=2/5

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