Question

va rog urgent
rezolvati in multimea numerelor naturale inecuatiile;
B)2x-13,7>0,9
1,9+5x>20,4

Answer 1

2x-13,7>0,9
2x>13.7+0.9
2x>14.6
x>14.6:2
x>7.3
x={8,9...}
1,9+5x>20,4
5x>20.4-1.9
5x>18.5
x>18.5:5
x>3.7
x={4,5..}