七下一元一次不等式組100題(有答案)

解不等式不等式組100題3/3解不等式不等式組100題1/13(2x+5)<2(4x+6)10-4(x-3)≤2(x-2)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+53[y-2(y-7)]≤4y15-(7+5x)≤2x+(5-3x)2(x-4)-3<1-3(x-2)2+0.5x+3(1+0.2x)>0.4x-0.62[0.04x+0.097(4-x)-2(4-3x)<-4x2+x3[x-2(x-2)]>x-3(x-3)x+45-3y+1x+52x-5<3xx2xx-323x-3x-3>1-x4≤3x-2-22x-1≤x-5≤4-y-1+3x-2<85-7x≥2x-42x<1-x≤x+53-3x12x-5<3xx2x5x-3≥2x2x+7>3x-11+2x-1<22x-1≥3x+1>x+3x+3>42x-5x<2x+1x+3>03x+1<2(x+2)x+15x-9<3(x-1)22x+3-34x-3<5x1x-1-2(x-1)x-35x+2>3(x-1)22x+532-x>0563x-22x+2≥3x+35x+3(x-2)≤10x-25x-2>3(x+1)4x-10<02x-12x-3<13x-3(x-2)≥42+x5x-2<3x+410-4(x-3)≥2(x-1)5x-2<3(x+1)32-x>0-35x-2≤3(x+1)1-2x-15x+4<3(x+1)2x+7>3x-11-2(x-1)≤523x-1<2(x+1)3x-2>x+23x-1<2x+1x-x-22x-1≥03x+1>0-2x+1

答案12345678910x>eq\f(3,2)x≥eq\f(13,3)x<-4x≥-15x>4y≥6x≥eq\f(3,4)x<eq\f(18,5)y≤eq\f(3,5)x>-eq\f(36,7)11121314151617181920x≥eq\f(3,5)x≤9x<-eq\f(20,3)y<3x<eq\f(9,5)x<3x<eq\f(6,5)x>eq\f(15,2)x≥-eq\f(57,2)y>eq\f(33,8)21222324252627282930x>eq\f(1,2)x>6-6<x<6x<-121<x≤4-10<x≤1無解x>8-4<x≤-2x≤-431323334353637383940y≤eq\f(25,6)y>eq\f(6,5)eq\f(3,2)<x<eq\f(10,3)無解-2≤x<eq\f(1,3)x>-3x≥0無解x>6-6<x<641424344454647484950x<-121≤x<32≤x<8x<0-2<x<eq\f(2,3)1≤x<3-2<x≤51＜x＜21＜x＜3-3<x≤-251525354555657585960-1<x≤2-3<x≤1-1≤x<3-1<x≤41≤x<3-113<x0<x≤31≤x<4-3<x≤3X<-161626364656667686970-2≤x<5-1≤x<3-2≤x<1-52無解-1≤x<31≤x<3-1≤x<20≤x<40<x≤471727374757677787980-2<x≤-1-3<x≤8-eq\f(1,2)<x≤252<-1<x≤2-1≤x<2-1≤x<2-1<x≤-3-7<x≤14≤x<881828384858687888990-2<x<345<-12≤x<5-4≤x<-3-1≤x<2-2<x≤1-8≤x≤5-1≤x<0-1≤x<2無解91929394