4=7z+(-8)+5z

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Solution for 4=7z+(-8)+5z equation: 



4=7z+(-8)+5z

We move all terms to the left:

4-(7z+(-8)+5z)=0



We calculate terms in parentheses: -(7z+(-8)+5z), so:

7z+(-8)+5z

determiningTheFunctionDomain
7z+5z+(-8)

We add all the numbers together, and all the variables

12z-8

Back to the equation:

-(12z-8)



We get rid of parentheses

-12z+8+4=0

We add all the numbers together, and all the variables

-12z+12=0

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

-12z=-12

z=-12/-12

z=1

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