5(3z-7z=4)

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Solution for 5(3z-7z=4) equation: 



5(3z-7z=4)

We move all terms to the left:

5(3z-7z-(4))=0

We add all the numbers together, and all the variables

5(-4z-4)=0

We multiply parentheses

-20z-20=0

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

-20z=20

z=20/-20

z=-1

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