7z-7=-4+2(z+6)

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Solution for 7z-7=-4+2(z+6) equation: 



7z-7=-4+2(z+6)

We move all terms to the left:

7z-7-(-4+2(z+6))=0



We calculate terms in parentheses: -(-4+2(z+6)), so:

-4+2(z+6)

determiningTheFunctionDomain
2(z+6)-4

We multiply parentheses

2z+12-4

We add all the numbers together, and all the variables

2z+8

Back to the equation:

-(2z+8)



We get rid of parentheses

7z-2z-8-7=0

We add all the numbers together, and all the variables

5z-15=0

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

5z=15

z=15/5

z=3

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