Question

determinați nr x stiind ca 30 divizibil cu (6xplus5)

Answer 1

D30={1;2;3;5;6;10;15;30}
6x+5=1 ..x=-2/3

6x+5=2...x=-1/2
6x+5=3 ...x=-1/2
 6x+5=5...x=0
6x+5=6   ...x=1/6
6x+5= 10...x=5/6
 6x+5=15...x=5/3
6x+5=30...x=25/6

cu ni s-a cerut numarul probabilerste vornbade numarukl NATURAL deci ramane numai x=0