13=-7.07(-9z+8)

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Solution for 13=-7.07(-9z+8) equation: 



13=-7.07(-9z+8)

We move all terms to the left:

13-(-7.07(-9z+8))=0



We calculate terms in parentheses: -(-7.07(-9z+8)), so:

-7.07(-9z+8)

We multiply parentheses

63.63z-56.56

Back to the equation:

-(63.63z-56.56)



We get rid of parentheses

-63.63z+56.56+13=0

We add all the numbers together, and all the variables

-63.63z+69.56=0

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

-63.63z=-69.56

z=-69.56/-63.63

z=1+3.0725388601036/32.968911917098

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