12=-3(x+1)+8x

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Solution for 12=-3(x+1)+8x equation: 



12=-3(x+1)+8x

We move all terms to the left:

12-(-3(x+1)+8x)=0



We calculate terms in parentheses: -(-3(x+1)+8x), so:

-3(x+1)+8x

We add all the numbers together, and all the variables

8x-3(x+1)

We multiply parentheses

8x-3x-3

We add all the numbers together, and all the variables

5x-3

Back to the equation:

-(5x-3)



We get rid of parentheses

-5x+3+12=0

We add all the numbers together, and all the variables

-5x+15=0

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

-5x=-15

x=-15/-5

x=+3

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