(4+5z)+(7z-3)-(8+9z)=-1

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Solution for (4+5z)+(7z-3)-(8+9z)=-1 equation: 



(4+5z)+(7z-3)-(8+9z)=-1

We move all terms to the left:

(4+5z)+(7z-3)-(8+9z)-(-1)=0

We add all the numbers together, and all the variables

(5z+4)+(7z-3)-(9z+8)-(-1)=0

We add all the numbers together, and all the variables

(5z+4)+(7z-3)-(9z+8)+1=0

We get rid of parentheses

5z+7z-9z+4-3-8+1=0

We add all the numbers together, and all the variables

3z-6=0

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

3z=6

z=6/3

z=2

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