5e + 4f = 9....multiply by -4 4e + 5f = 9 ...multiply by 5 ------------------ -20e - 16f = -36 (result of multiplying by -4) 20e + 25f = 45 (result of multiplying by 5) ----------------add 9f = 9 f = 9/9 f = 1
5e + 4f = 9 5e + 4(1) = 9 5e + 4 = 9 5e = 9 - 4 5e = 5 e = 5/5 e = 1
You would plug in twenty eight point nine to the q. So it would be five point one plus twenty eight point nine divided by three point four, which equals thirteen point six.
