x+y/2+x-y/3=6 (1)
2(x+y)-3x+3y=24 (2)
整理(1)得:3x+3y+2x-2y=36
5x+y=36 (3)
整理(2)得:2x+2y-3x+3y=24
-x+5y=24 (4)
(3)+(4)*5得:
26y=156
y=6
代入(4)得:
x=30-24=6
所以.方程组的解是:x=6;y=6
x+y/2+x-y/3=6 (1)
2(x+y)-3x+3y=24 (2)
整理(1)得:3x+3y+2x-2y=36
5x+y=36 (3)
整理(2)得:2x+2y-3x+3y=24
-x+5y=24 (4)
(3)+(4)*5得:
26y=156
y=6
代入(4)得:
x=30-24=6
所以.方程组的解是:x=6;y=6