4(2i-9)=4

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Solution for 4(2i-9)=4 equation: 



4(2i-9)=4

We move all terms to the left:

4(2i-9)-(4)=0

We multiply parentheses

8i-36-4=0

We add all the numbers together, and all the variables

8i-40=0

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

8i=40

i=40/8

i=5

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