Am si eu nevoie de 10inecuati de gradul1 va rog frumos imi trebuiesc urgent

2
rezolvate?
da
1. 5x-10<0
5x<10
x<2
2. 40x-80>40
40x>40+80
40x>120
x>30
3. 2z-4-2
2z≥2
z≥1
4. 2x-6≤x-4
2x-x≤2
x≤2
5. 7x+7≥5x-3
7x-5x≥-7-3
2x≥-10
x≥10
6. 100x-75≤50x+125
50x≤200
x≤4
7. 4x-6<2x+4
2x<10
x<5
8. 144x>12
x>1/12
9. 9x-81≥0
9x≥81
x≥9
10. 60x-40<20
60x<60
x<1
multumesc

Răspunsuri

2014-06-09T17:14:43+03:00
1. 5x-10<0
5x<10
x<2
2. 40x-80>40
40x>40+80
40x>120
x>30
3. 2z-4 \geq -2
2z≥2
z≥1
4. 2x-6≤x-4
2x-x≤2
x≤2
5. 7x+7≥5x-3
7x-5x≥-7-3
2x≥-10
x≥10
6. 100x-75≤50x+125
50x≤200
x≤4
7.  4x-6<2x+4
2x<10
x<5
8. 144x>12
x>1/12
9. 9x-81≥0
9x≥81
x≥9
10. 60x-40<20
60x<60
x<1
1 5 1
2014-06-09T17:26:52+03:00