解方程组 5a1x+3b1y=4c1
5a2x+3b2y=4c2
可以看成:
a1(5X/4)+b1(3Y/4)=c1
a2(5X/4)+b1(3Y/4)=c2
∴5X/4=5,
3Y/4=6,
∴X=4,Y=8.