-8(x+1)-x-12=-9(x+3)+7

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Solution for -8(x+1)-x-12=-9(x+3)+7 equation: 



-8(x+1)-x-12=-9(x+3)+7

We move all terms to the left:

-8(x+1)-x-12-(-9(x+3)+7)=0

We add all the numbers together, and all the variables

-1x-8(x+1)-(-9(x+3)+7)-12=0

We multiply parentheses

-1x-8x-(-9(x+3)+7)-8-12=0



We calculate terms in parentheses: -(-9(x+3)+7), so:

-9(x+3)+7

We multiply parentheses

-9x-27+7

We add all the numbers together, and all the variables

-9x-20

Back to the equation:

-(-9x-20)



We add all the numbers together, and all the variables

-9x-(-9x-20)-20=0

We get rid of parentheses

-9x+9x+20-20=0

We add all the numbers together, and all the variables

=0

x=0/1

x=0

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