Z+4(2z+3)=21

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Solution for Z+4(2z+3)=21 equation: 



+4(2Z+3)=21

We move all terms to the left:

+4(2Z+3)-(21)=0

We multiply parentheses

8Z+12-21=0

We add all the numbers together, and all the variables

8Z-9=0

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

8Z=9

Z=9/8

Z=1+1/8

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