8z+7.5=9z

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Solution for 8z+7.5=9z equation: 



8z+7.5=9z

We move all terms to the left:

8z+7.5-(9z)=0

We add all the numbers together, and all the variables

-1z+7.5=0

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

-z=-7.5

z=-7.5/-1

z=7+0.5/1

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