8+9z=2(5-7z)

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Solution for 8+9z=2(5-7z) equation: 



8+9z=2(5-7z)

We move all terms to the left:

8+9z-(2(5-7z))=0

We add all the numbers together, and all the variables

9z-(2(-7z+5))+8=0



We calculate terms in parentheses: -(2(-7z+5)), so:

2(-7z+5)

We multiply parentheses

-14z+10

Back to the equation:

-(-14z+10)



We get rid of parentheses

9z+14z-10+8=0

We add all the numbers together, and all the variables

23z-2=0

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

23z=2

z=2/23

z=2/23

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