-480=-20(z+419)

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Solution for -480=-20(z+419) equation: 



-480=-20(z+419)

We move all terms to the left:

-480-(-20(z+419))=0



We calculate terms in parentheses: -(-20(z+419)), so:

-20(z+419)

We multiply parentheses

-20z-8380

Back to the equation:

-(-20z-8380)



We get rid of parentheses

20z+8380-480=0

We add all the numbers together, and all the variables

20z+7900=0

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

20z=-7900

z=-7900/20

z=-395

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