-2z-9=-4

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Solution for -2z-9=-4 equation: 



-2z-9=-4

We move all terms to the left:

-2z-9-(-4)=0

We add all the numbers together, and all the variables

-2z-5=0

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

-2z=5

z=5/-2

z=-2+1/2

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