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

We add all the numbers together, and all the variables

8x-(-3(-4x+15))+9=0



We calculate terms in parentheses: -(-3(-4x+15)), so:

-3(-4x+15)

We multiply parentheses

12x-45

Back to the equation:

-(12x-45)



We get rid of parentheses

8x-12x+45+9=0

We add all the numbers together, and all the variables

-4x+54=0

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

-4x=-54

x=-54/-4

x=13+1/2

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