4z+7z=-20-1

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Solution for 4z+7z=-20-1 equation: 



4z+7z=-20-1

We move all terms to the left:

4z+7z-(-20-1)=0

We add all the numbers together, and all the variables

4z+7z-(-21)=0

We add all the numbers together, and all the variables

11z+21=0

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

11z=-21

z=-21/11

z=-1+10/11

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