-4z-7z-18=20-9z

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Solution for -4z-7z-18=20-9z equation: 



-4z-7z-18=20-9z

We move all terms to the left:

-4z-7z-18-(20-9z)=0

We add all the numbers together, and all the variables

-4z-7z-(-9z+20)-18=0

We add all the numbers together, and all the variables

-11z-(-9z+20)-18=0

We get rid of parentheses

-11z+9z-20-18=0

We add all the numbers together, and all the variables

-2z-38=0

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

-2z=38

z=38/-2

z=-19

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