5(3i+8)-1=129

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Solution for 5(3i+8)-1=129 equation: 



5(3i+8)-1=129

We move all terms to the left:

5(3i+8)-1-(129)=0

We add all the numbers together, and all the variables

5(3i+8)-130=0

We multiply parentheses

15i+40-130=0

We add all the numbers together, and all the variables

15i-90=0

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

15i=90

i=90/15

i=6

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