3+8x=-7(6+x)

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Solution for 3+8x=-7(6+x) equation: 



3+8x=-7(6+x)

We move all terms to the left:

3+8x-(-7(6+x))=0

We add all the numbers together, and all the variables

8x-(-7(x+6))+3=0



We calculate terms in parentheses: -(-7(x+6)), so:

-7(x+6)

We multiply parentheses

-7x-42

Back to the equation:

-(-7x-42)



We get rid of parentheses

8x+7x+42+3=0

We add all the numbers together, and all the variables

15x+45=0

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

15x=-45

x=-45/15

x=-3

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