(x+3)/2-(y+5)/3=7两边乘以6,得3(x+3)-2(y+5)=73x+9-2y-10=73x-2y=8........(1)(x+4)/3-(2y-3)/5=2两边乘以15,得5(x+4)-3(2y-3)=25x+20-6y+9=25x-6y=-27........(2)(1)*3-(2)得4x=51x=51/4代入(2)得255/4-6y=-276y=363/4y=121/8解得x=51/4y=121/8
x=51/4y=121/8