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+15))=0

We get rid of parentheses

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

We multiply parentheses ..

10x-2x-((+12x-45))-9=0



We calculate terms in parentheses: -((+12x-45)), so:

(+12x-45)

We add all the numbers together, and all the variables

(12x-45)

We get rid of parentheses

12x-45

Back to the equation:

-(12x-45)



We add all the numbers together, and all the variables

8x-(12x-45)-9=0

We get rid of parentheses

8x-12x+45-9=0

We add all the numbers together, and all the variables

-4x+36=0

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

-4x=-36

x=-36/-4

x=+9

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