18.5=7.5+7(z+9)

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Solution for 18.5=7.5+7(z+9) equation: 



18.5=7.5+7(z+9)

We move all terms to the left:

18.5-(7.5+7(z+9))=0



We calculate terms in parentheses: -(7.5+7(z+9)), so:

7.5+7(z+9)

determiningTheFunctionDomain
7(z+9)+7.5

We multiply parentheses

7z+63+7.5

We add all the numbers together, and all the variables

7z+70.5

Back to the equation:

-(7z+70.5)



We get rid of parentheses

-7z-70.5+18.5=0

We add all the numbers together, and all the variables

-7z-52=0

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

-7z=52

z=52/-7

z=-7+3/7

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