-7z+9(-8+-5z)=40+4z

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Solution for -7z+9(-8+-5z)=40+4z equation: 



-7z+9(-8+-5z)=40+4z

We move all terms to the left:

-7z+9(-8+-5z)-(40+4z)=0

We add all the numbers together, and all the variables

-7z+9(-5z)-(4z+40)=0

We multiply parentheses

-7z-45z-(4z+40)=0

We get rid of parentheses

-7z-45z-4z-40=0

We add all the numbers together, and all the variables

-56z-40=0

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

-56z=40

z=40/-56

z=-5/7

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