7z+2-8z=-4

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Solution for 7z+2-8z=-4 equation: 



7z+2-8z=-4

We move all terms to the left:

7z+2-8z-(-4)=0

We add all the numbers together, and all the variables

-1z+6=0

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

-z=-6

z=-6/-1

z=+6

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