Question 958302

<=angle symbol 
Find m<B and m<E.

In a triangle labeled with the following corners:
E (12x)
R 93 degrees
B (9x + 3)degrees

I've tried solving for x in various ways. I'm so confused. Please help me
<pre></b>What have you tried? Don't you think it'd be best to show your work, so someone would be able to tell you
what you did, or didn't do wrong?
m&#8736B: 9(4) + 3, or {{{highlight_green(39^o)}}}
m&#8736E: 12(4), or {{{highlight_green(48^o)}}}