(1-0.5x)/0.3-( 2x-1)/3=0.3x/0.02
10/3 - 5/3* x - 2/3 * x + 1/3 = 15x
11/3 - 7/3 * x = 15x
11 - 7x = 45x
11 = 52x
x = 11/52