dunno how much i'd agree with this..
i'm a right brainer.. yet i'm the truth at math, and i'm very logical & analytical.. strategic & realistic.. being a virgo, i'm also a perfectionist.. if u believe in that stuff..
each hemisphere of the brain allows you to portray these characteristics. just cause you consider yourself a right brainer doesnt mean youre gonna suck at math. it just means your more in tune with that side.
i, for example, hate math but im good at making calculations and ppl consider me extremely logical. but im also very creative, love music, and draw.