4+9z=40

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Solution for 4+9z=40 equation: 



4+9z=40

We move all terms to the left:

4+9z-(40)=0

We add all the numbers together, and all the variables

9z-36=0

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

9z=36

z=36/9

z=4

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