-12=(-2z)+3+7z

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Solution for -12=(-2z)+3+7z equation: 



-12=(-2z)+3+7z

We move all terms to the left:

-12-((-2z)+3+7z)=0



We calculate terms in parentheses: -((-2z)+3+7z), so:

(-2z)+3+7z

determiningTheFunctionDomain
(-2z)+7z+3

We add all the numbers together, and all the variables

7z+(-2z)+3

We get rid of parentheses

7z-2z+3

We add all the numbers together, and all the variables

5z+3

Back to the equation:

-(5z+3)



We get rid of parentheses

-5z-3-12=0

We add all the numbers together, and all the variables

-5z-15=0

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

-5z=15

z=15/-5

z=-3

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