18z+12+19z=16z-9(-5z+20)

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Solution for 18z+12+19z=16z-9(-5z+20) equation: 



18z+12+19z=16z-9(-5z+20)

We move all terms to the left:

18z+12+19z-(16z-9(-5z+20))=0

We add all the numbers together, and all the variables

37z-(16z-9(-5z+20))+12=0



We calculate terms in parentheses: -(16z-9(-5z+20)), so:

16z-9(-5z+20)

We multiply parentheses

16z+45z-180

We add all the numbers together, and all the variables

61z-180

Back to the equation:

-(61z-180)



We get rid of parentheses

37z-61z+180+12=0

We add all the numbers together, and all the variables

-24z+192=0

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

-24z=-192

z=-192/-24

z=+8

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