不等式组计算题

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1、不等式组1.2x+9y<813x+y>=342.9x+4y<358x+3y<=303.7x+2y<527x+4y>=624.4x+6y<549x+2y>875.2x+y<72x+5y>=196.x+2y<213x+5y>567.5x+7y<525x+2y>228.5x+5y<657x+7y>2039.8x+4y<56x+4y>2110.5x+7y<415x+8y>4411.7x+5y<543x+4y>3812.x+8y<154x+y>2913.3x+6y<249x+5y>4614.9x+2y<624x+3y>3615.9x+4y<467x+4y=4216.9x+7

2、y<1354x+y>4117.3x+8y<51x+6y>2718.9x+3y<994x+7y>9519.9x+2y<383x+6y>1820.5x+5y<457x+9y=6921.8x+2y<287x+8y>6222.x+6y<143x+3y>2723.7x+4y<672x+8y>2624.5x+4y<527x+6y>7425.7x+y<94x+6y>1626.6x+6y<486x+3y>4227.8x+2y<167x+y>1128.4x+9y<778x+6y>9429.6x+8y<687x+6y>6630.2x+2y>227x+2y>472X+3＞0-3X+5＞

3、02、2X＜-1X+2＞03、5X+6＜3X8-7X＞4-5X4、2（1+X）＞3（X-7）4（2X-3）＞5（X+2）5、2X＜4X+3＞06、1-X＞0X+2＜07、5+2X＞3X+2＜88、2X+4＜01/2（X+8）-2＞09、5X-2≥3（X+1）1/2X+1＞3/2X-310、1+1/2X＞22（X-3）≤43x(x+5)＞3x2+7x-4<2x+13x+14>4(2x-9)3x-7≥4x-42x-3x-3＜60.4(x-1)≥0.3-0.9xx-4<2x+12x-6982x-3x+3＜62x-3x+1＜62x-

4、3x+3＜12x-19＜7x+313x-2(9-x)＞3(7+2x)-(11-6x)2(3x-1)-3(4x+5)≤x-4(x-7)2(x-1)-x＞3(x-1)-3x-515-(7+5x)≤2x+(5-3x)2X+3＞0-3X+5＞05X+6＜3X4（2X-3）＞5（X+2）2X+4＜05X-2≥3（X+1）2（X-3）≤45m-3>02x-3(x-1)>66x-3(x-1)≤12-2(x+2)3(1-3x)<4(x-1)8-7x+1>2(3x-2)3x+14>4(2x-9)3-3m<-2m5x+3x＞2-3y+9＜7(3+8)x＞65-3/1x＞511x-5x

5、＞3-3a-9a＞11-4a+9＞633x+33＜15b-9＜9b6x+8＞3x+83x-7≥4x-42x-19＜7x+31．3x-2(9-x)＞3(7+2x)-(11-6x)．2(3x-1)-3(4x+5)≤x-4(x-7)．2(x-1)-x＞3(x-1)-3x-5．3[y-2(y-7)]≤4y．15-(7+5x)≤2x+(5-3x)．3*10x<5003*10(x+1)>5007（x+3）>987x<982X+3＞0-3X+5＞02X＜-1X+2＞05X+6＜3X8-7X＞4-5X2（1+X）＞3（X-7）4（2X-3）＞5（X+2）2X＜4X+3＞01-X＞

6、0X+2＜05+2X＞3X+2＜82X+4＜01/2（X+8）-2＞05X-2≥3（X+1）1/2X+1＞3/2X-31+1/2X＞22（X-3）≤43x(x+5)＞3x2+7x-4<2x+13x+14>4(2x-9)3x-7≥4x-42x-3x-3＜60.4(x-1)≥0.3-0.9xx-4<2x+12x-6982x-3x+3＜62x-3x+1＜62x-3x+3＜12x-19＜7x+313x-2(9-x)＞3(7+2x)-(11-6x)2(3x-1)-3(4x+5)≤x-4(x-7)2(x-1)-x＞3(x-1)-3x-5

7、15-(7+5x)≤2x+(5-3x)2X+3＞0-3X+5＞05X+6＜3X4（2X-3）＞5（X+2）2X+4＜05X-2≥3（X+1）2（X-3）≤45m-3>02x-3(x-1)>66x-3(x-1)≤12-2(x+2)3(1-3x)<4(x-1)8-7x+1>2(3x-2)3x+14>4(2x-9)3-3m<-2m5x+3x＞2-3y+9＜7(3+8)x＞65-3/1x＞511x-5x＞3-3a-9a＞11-4a+9＞633x+33＜15b-9＜9b6x+8＞3x+83x-7≥4x-42x-19＜7x+31．3x-2(9-x)＞3(7+2x)-(11-6

8、x)．2(