4.5z=-18

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Solution for 4.5z=-18 equation: 



4.5z=-18

We move all terms to the left:

4.5z-(-18)=0

We add all the numbers together, and all the variables

4.5z+18=0

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

4.5z=-18

z=-18/4.5

z=-4

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