1.8/1.2-8x-1.3/2-3x=5/0.3x-0.418/12-8x-13/20-3x=50/3 x-0.43/2-11x-13/20=50/3x-0.450/3x+11x=2/3-13/20-0.4(27+2/3)x =2/3-13/20-2/583/3 x =(40-39-12)/60=-11/60x=-11/60 * 3/83 = -11/1660