(-1/3z)2+7=-5

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Solution for (-1/3z)2+7=-5 equation: 



(-1/3z)2+7=-5

We move all terms to the left:

(-1/3z)2+7-(-5)=0



Domain of the equation: 3z)2!=0

z!=0/1

z!=0

z∈R



We add all the numbers together, and all the variables

(-1/3z)2+12=0

We multiply parentheses

-2z+12=0

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

-2z=-12

z=-12/-2

z=+6

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