7(3x+9)=23-(x+15)

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Solution for 7(3x+9)=23-(x+15) equation: 



7(3x+9)=23-(x+15)

We move all terms to the left:

7(3x+9)-(23-(x+15))=0

We multiply parentheses

21x-(23-(x+15))+63=0



We calculate terms in parentheses: -(23-(x+15)), so:

23-(x+15)

determiningTheFunctionDomain
-(x+15)+23

We get rid of parentheses

-x-15+23

We add all the numbers together, and all the variables

-1x+8

Back to the equation:

-(-1x+8)



We get rid of parentheses

21x+1x-8+63=0

We add all the numbers together, and all the variables

22x+55=0

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

22x=-55

x=-55/22

x=-2+1/2

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