19.8-6z=7+4(9-10z)

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Solution for 19.8-6z=7+4(9-10z) equation: 



19.8-6z=7+4(9-10z)

We move all terms to the left:

19.8-6z-(7+4(9-10z))=0

We add all the numbers together, and all the variables

-6z-(7+4(-10z+9))+19.8=0



We calculate terms in parentheses: -(7+4(-10z+9)), so:

7+4(-10z+9)

determiningTheFunctionDomain
4(-10z+9)+7

We multiply parentheses

-40z+36+7

We add all the numbers together, and all the variables

-40z+43

Back to the equation:

-(-40z+43)



We get rid of parentheses

-6z+40z-43+19.8=0

We add all the numbers together, and all the variables

34z-23.2=0

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

34z=23.2

z=23.2/34

z=19.333333333333/28.333333333333

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