8(9+x)=7(x-4)

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Solution for 8(9+x)=7(x-4) equation: 



8(9+x)=7(x-4)

We move all terms to the left:

8(9+x)-(7(x-4))=0

We add all the numbers together, and all the variables

8(x+9)-(7(x-4))=0

We multiply parentheses

8x-(7(x-4))+72=0



We calculate terms in parentheses: -(7(x-4)), so:

7(x-4)

We multiply parentheses

7x-28

Back to the equation:

-(7x-28)



We get rid of parentheses

8x-7x+28+72=0

We add all the numbers together, and all the variables

x+100=0

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

x=-100

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