12x-19=-4(3x-9)-15

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Solution for 12x-19=-4(3x-9)-15 equation: 



12x-19=-4(3x-9)-15

We move all terms to the left:

12x-19-(-4(3x-9)-15)=0



We calculate terms in parentheses: -(-4(3x-9)-15), so:

-4(3x-9)-15

We multiply parentheses

-12x+36-15

We add all the numbers together, and all the variables

-12x+21

Back to the equation:

-(-12x+21)



We get rid of parentheses

12x+12x-21-19=0

We add all the numbers together, and all the variables

24x-40=0

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

24x=40

x=40/24

x=1+2/3

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