Question

Afla ce valori pot lua literele?a)8*a+6mai mic decat71?

Answer 1

8*0+6=6
8*1+6=14
8*2+6=16+6=22
8*3+6=24+6=30
8*4+6=32+6=38
8*5+6=40+6=46
8*6+6=48+6=54
8*7+6=56+6=62
8*8+6=64+6=70

Answer 2

8a+6<71
8a<71-6
8a<66
a<66 pe 8
a<8,25
  Daca "a" apartine lui N rezulta
a mai mic sau egal cu 8
a={0,1,2,3,4,5,6,7,8}
raspuns 9 valori poate lua coeficientul "a"