Question

sa se rezolve inecuatiile (x numar natural)
(3x+2x):5<2

Answer 1

(3x+2x):5=5x:5=x    de unde rezulta x<2 , x =  1,0 si toate numerele negative

Answer 2

(3X+2X):5<2
5x:5<2
5(x+1)<2
x+1<2x5
x+1<10
x<10-1
x<9
==> x={0;1;2;3;4;5;6;7;8}