7x-4=-2+2(x+9)

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Solution for 7x-4=-2+2(x+9) equation: 



7x-4=-2+2(x+9)

We move all terms to the left:

7x-4-(-2+2(x+9))=0



We calculate terms in parentheses: -(-2+2(x+9)), so:

-2+2(x+9)

determiningTheFunctionDomain
2(x+9)-2

We multiply parentheses

2x+18-2

We add all the numbers together, and all the variables

2x+16

Back to the equation:

-(2x+16)



We get rid of parentheses

7x-2x-16-4=0

We add all the numbers together, and all the variables

5x-20=0

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

5x=20

x=20/5

x=4

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