12x-15-7x=8(x+3)

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Solution for 12x-15-7x=8(x+3) equation: 



12x-15-7x=8(x+3)

We move all terms to the left:

12x-15-7x-(8(x+3))=0

We add all the numbers together, and all the variables

5x-(8(x+3))-15=0



We calculate terms in parentheses: -(8(x+3)), so:

8(x+3)

We multiply parentheses

8x+24

Back to the equation:

-(8x+24)



We get rid of parentheses

5x-8x-24-15=0

We add all the numbers together, and all the variables

-3x-39=0

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

-3x=39

x=39/-3

x=-13

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