10x-(2x+9)=-3(15+-4x)

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Solution for 10x-(2x+9)=-3(15+-4x) equation: 



10x-(2x+9)=-3(15+-4x)

We move all terms to the left:

10x-(2x+9)-(-3(15+-4x))=0

We add all the numbers together, and all the variables

10x-(2x+9)-(-3(-4x))=0

We get rid of parentheses

10x-2x-(-3(-4x))-9=0



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

-3(-4x)

We multiply parentheses

12x

Back to the equation:

-(12x)



We add all the numbers together, and all the variables

-4x-9=0

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

-4x=9

x=9/-4

x=-2+1/4

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