2个回答
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1. 2X+3Y=4
2X-3Y=6
2. 3(X-1)=Y+5
5(Y-1)=3(X+5)
3. X/2-(Y-2)/6=(X+Y)/3+1
(X-6)/10+Y=X/2+21/5
4. 2x+3y=13
3x+2y=12
5. 5x+8y=71
7x+y=28
6. 3x+4=6y
y-4x=4
7. 2X+3Y=11
Y-2X=1
8. 2X-3Y=5
2X-8Y=3
9. 3X-2Y=6
2X-5Y=4
10. 4X+3Y=6
2X+Y=4
1.{5x-3>x-4 2.x-2(x-1)<=3 3.(3x-1)/4>3
1+2/3-x<=x-1/3 (2x+5)/3>x (3x-1)/4<=7
4.2x-3>0 5.2-5x<=3(1-x)
4-3x<0 (x+2)/3>2x-1
2x-5<=4x+7
、2X+3>0
-3X+5>0
2、2X<-1
X+2>0
3、5X+6<3X
8-7X>4-5X
4、2(1+X)>3(X-7)
4(2X-3)>5(X+2)
5、2X<4
X+3>0
6、1-X>0
X+2<0
7、5+2X>3
X+2<8
8、2X+4<0
1/2(X+8)-2>0
9、5X-2≥3(X+1)
1/2X+1>3/2X-3
10、1+1/2X>2
2(X-3)≤4
1. 3x(x+5)>3x2+7
x-4 < 2x+1
2. 3x+14 > 4(2x-9)
3x-7≥4x-4
3. 2x-3x-3<6
0.4(x-1)≥0.3-0.9x
4. x-4 < 2x+1
2x-6 < x-2
5. 3×10x<500
7(X+3)>98
6. 2x-3x+3<6
2x-3x+1<6
7. 2x-3x+3<1
2x-19<7x+31
8. 3x-2(9-x)>3(7+2x)-(11-6x)
2(3x-1)-3(4x+5)≤x-4(x-7)
9. 2(x-1)-x>3(x-1)-3x-5
15-(7+5x)≤2x+(5-3x)
2X-3Y=6
2. 3(X-1)=Y+5
5(Y-1)=3(X+5)
3. X/2-(Y-2)/6=(X+Y)/3+1
(X-6)/10+Y=X/2+21/5
4. 2x+3y=13
3x+2y=12
5. 5x+8y=71
7x+y=28
6. 3x+4=6y
y-4x=4
7. 2X+3Y=11
Y-2X=1
8. 2X-3Y=5
2X-8Y=3
9. 3X-2Y=6
2X-5Y=4
10. 4X+3Y=6
2X+Y=4
1.{5x-3>x-4 2.x-2(x-1)<=3 3.(3x-1)/4>3
1+2/3-x<=x-1/3 (2x+5)/3>x (3x-1)/4<=7
4.2x-3>0 5.2-5x<=3(1-x)
4-3x<0 (x+2)/3>2x-1
2x-5<=4x+7
、2X+3>0
-3X+5>0
2、2X<-1
X+2>0
3、5X+6<3X
8-7X>4-5X
4、2(1+X)>3(X-7)
4(2X-3)>5(X+2)
5、2X<4
X+3>0
6、1-X>0
X+2<0
7、5+2X>3
X+2<8
8、2X+4<0
1/2(X+8)-2>0
9、5X-2≥3(X+1)
1/2X+1>3/2X-3
10、1+1/2X>2
2(X-3)≤4
1. 3x(x+5)>3x2+7
x-4 < 2x+1
2. 3x+14 > 4(2x-9)
3x-7≥4x-4
3. 2x-3x-3<6
0.4(x-1)≥0.3-0.9x
4. x-4 < 2x+1
2x-6 < x-2
5. 3×10x<500
7(X+3)>98
6. 2x-3x+3<6
2x-3x+1<6
7. 2x-3x+3<1
2x-19<7x+31
8. 3x-2(9-x)>3(7+2x)-(11-6x)
2(3x-1)-3(4x+5)≤x-4(x-7)
9. 2(x-1)-x>3(x-1)-3x-5
15-(7+5x)≤2x+(5-3x)
追问
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