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8=2i+2i
We move all terms to the left:
8-(2i+2i)=0
We add all the numbers together, and all the variables
-(+4i)+8=0
We get rid of parentheses
-4i+8=0
We move all terms containing i to the left, all other terms to the right
-4i=-8
i=-8/-4
i=+2
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