Question

I guess there was more he didn’t go over...! Can anyone help and/or explain? :)

Answer 1

In an equation, both sides are equal. So, if I say 4x = 8, then 8 must = 4x. If a = b, then b = a. They are equal, and therefore symmetrical about the equals sign.

The correct answer is B.

if
`7 √(x) +17i = 49i` then
`49i = 7 √(x) +17i`.