7-14z=-21

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Solution for 7-14z=-21 equation: 



7-14z=-21

We move all terms to the left:

7-14z-(-21)=0

We add all the numbers together, and all the variables

-14z+28=0

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

-14z=-28

z=-28/-14

z=+2

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