3z-21=4(3)

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Solution for 3z-21=4(3) equation: 



3z-21=4(3)

We move all terms to the left:

3z-21-(4(3))=0

determiningTheFunctionDomain
3z-21-43=0

We add all the numbers together, and all the variables

3z-64=0

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

3z=64

z=64/3

z=21+1/3

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