解：原式可化为64X+15X-10.5=2193.6(32和60约分，然后两边同乘以8）移向得：79X=2204.1解得:X=27.9
8X+(X-0.7)/8*15=274.2,64X+15X-10.5=2193.6,79X=2204.1,X=27.9
8x+(x-0.7)/32*60=274.2256x+60x-42=8774.4316x=8816.4x=27.9元
