3z+4z-3=18

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Solution for 3z+4z-3=18 equation: 



3z+4z-3=18

We move all terms to the left:

3z+4z-3-(18)=0

We add all the numbers together, and all the variables

7z-21=0

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

7z=21

z=21/7

z=3

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