7i+14=21

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Solution for 7i+14=21 equation: 



7i+14=21

We move all terms to the left:

7i+14-(21)=0

We add all the numbers together, and all the variables

7i-7=0

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

7i=7

i=7/7

i=1

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