18+8x=-x-3(1+4x)

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Solution for 18+8x=-x-3(1+4x) equation: 



18+8x=-x-3(1+4x)

We move all terms to the left:

18+8x-(-x-3(1+4x))=0

We add all the numbers together, and all the variables

8x-(-x-3(4x+1))+18=0



We calculate terms in parentheses: -(-x-3(4x+1)), so:

-x-3(4x+1)

We add all the numbers together, and all the variables

-1x-3(4x+1)

We multiply parentheses

-1x-12x-3

We add all the numbers together, and all the variables

-13x-3

Back to the equation:

-(-13x-3)



We get rid of parentheses

8x+13x+3+18=0

We add all the numbers together, and all the variables

21x+21=0

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

21x=-21

x=-21/21

x=-1

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