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 [tex] 7 \sqrt{x} +17i = 49i[/tex] then [tex]49i = 7 \sqrt{x} +17i[/tex].
