已知3x+2y=4a+3(1),2x+2y=a+7(2)的解满足条件X>0,y>0,求a的取值范围
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已知3x+2y=4a+3(1),2x+2y=a+7(2)的解满足条件X>0,y>0,求a的取值范围
已知3x+2y=4a+3(1),2x+2y=a+7(2)的解满足条件X>0,y>0,求a的取值范围
已知3x+2y=4a+3(1),2x+2y=a+7(2)的解满足条件X>0,y>0,求a的取值范围
3x+2y=4a+3(1),2x+2y=a+7(2)
(1)-(2)
x=3a-4>0
y=-2a+15/2>0
4/3
(4/3)<a<3