16=4(z-80)

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Solution for 16=4(z-80) equation: 



16=4(z-80)

We move all terms to the left:

16-(4(z-80))=0



We calculate terms in parentheses: -(4(z-80)), so:

4(z-80)

We multiply parentheses

4z-320

Back to the equation:

-(4z-320)



We get rid of parentheses

-4z+320+16=0

We add all the numbers together, and all the variables

-4z+336=0

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

-4z=-336

z=-336/-4

z=+84

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