-20=-5(2+2z)

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Solution for -20=-5(2+2z) equation: 



-20=-5(2+2z)

We move all terms to the left:

-20-(-5(2+2z))=0

We add all the numbers together, and all the variables

-(-5(2z+2))-20=0



We calculate terms in parentheses: -(-5(2z+2)), so:

-5(2z+2)

We multiply parentheses

-10z-10

Back to the equation:

-(-10z-10)



We get rid of parentheses

10z+10-20=0

We add all the numbers together, and all the variables

10z-10=0

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

10z=10

z=10/10

z=1

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