4(3x+2y)=12x+8y=4p+4(1)3(4x+3y)=12x+9y=3p-3(2)(2)-(1)=y=-p-73(3x+2y)=9x+6y=3p+3(3)2(4x+3y)=8x+6y=2p-2(4)(3)-(4)=x=p+5因为x>y所以p+5>-p-7解得p>-6 补充: 4(3x+2y)=12x+8y=4p+4(1) 3(4x+3y)=12x+9y=3p-3(2) (2)-(1)=y=-p-7 3(3x+2y)=9x+6y=3p+3(3) 2(4x+3y)=8x+6y=2p-2(4) (3)-(4)=x=p+5 因为x>y 所以p+5>-p-7 解得p>-6
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