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

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



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

We move all terms to the left:

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



We calculate terms in parentheses: -(7x+3(-3x-3)), so:

7x+3(-3x-3)

We multiply parentheses

7x-9x-9

We add all the numbers together, and all the variables

-2x-9

Back to the equation:

-(-2x-9)



We get rid of parentheses

2x+9+1=0

We add all the numbers together, and all the variables

2x+10=0

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

2x=-10

x=-10/2

x=-5

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