(8z=4)(5z+10)=0

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Solution for (8z=4)(5z+10)=0 equation: 



(8z=4)(5z+10)=0

We move all terms to the left:

(8z-(4)(5z+10))=0



We calculate terms in parentheses: +(8z-4(5z+10)), so:

8z-4(5z+10)

We multiply parentheses

8z-20z-40

We add all the numbers together, and all the variables

-12z-40

Back to the equation:

+(-12z-40)



We get rid of parentheses

-12z-40=0

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

-12z=40

z=40/-12

z=-3+1/3

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