4z+3=21

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Solution for 4z+3=21 equation: 



4z+3=21

We move all terms to the left:

4z+3-(21)=0

We add all the numbers together, and all the variables

4z-18=0

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

4z=18

z=18/4

z=4+1/2

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