3-7x=-3(1+2x)

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Solution for 3-7x=-3(1+2x) equation: 



3-7x=-3(1+2x)

We move all terms to the left:

3-7x-(-3(1+2x))=0

We add all the numbers together, and all the variables

-7x-(-3(2x+1))+3=0



We calculate terms in parentheses: -(-3(2x+1)), so:

-3(2x+1)

We multiply parentheses

-6x-3

Back to the equation:

-(-6x-3)



We get rid of parentheses

-7x+6x+3+3=0

We add all the numbers together, and all the variables

-1x+6=0

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

-x=-6

x=-6/-1

x=+6

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