8i+6=3i+21

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Solution for 8i+6=3i+21 equation: 



8i+6=3i+21

We move all terms to the left:

8i+6-(3i+21)=0

We get rid of parentheses

8i-3i-21+6=0

We add all the numbers together, and all the variables

5i-15=0

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

5i=15

i=15/5

i=3

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