2x/3+3y/4=1/2------(1)
4x/5+5y/6=7/15------(2)
(1) X12,(2)X30得:
8x+9y=6------(3)
24x+25y=14------(4)
3X(3) - (4) = 得2y=4
所以y=2
x=-3/2
2x/3+3y/4=1/2------(1)
4x/5+5y/6=7/15------(2)
(1) X12,(2)X30得:
8x+9y=6------(3)
24x+25y=14------(4)
3X(3) - (4) = 得2y=4
所以y=2
x=-3/2