Question 30393
6.4=9.2x + 2(1-x) or 6.4 = 9.2x + 2 - 2x or 4.4=7.2x or x=4.4/7.2 or x=.6111

1-.6111=.3889 

proof: 9.2 x .6111 = 5.62  2 x .3889 = .78  or 5.62+.78=6.4.