Question

How do you solve `4(1 - 2j) = 7(2j + 10)`?

Answer 1

We are going to expand :

`4-8j=14j+70`
`4-70-8j=14j` ( we substract `70` on each side )
`-66-8j=14j`
`-66=14j+8j` ( we add `8j` on each side )
`-66=22j`
`(-66)/22=j` ( we divide by `22` on each side )
`j=-3`