Question

5. Aflaţi valorile numărului natural x ştiind că 2(x + 3) < 307-251.​

Answer 1

Salut!

2(x+3)<307-251

2x+6<56/-6

2x<50/:2

x<25

x∈{0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24}

S={0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24}

Succes!

Answer 2

Răspuns:

307-251=56

2(x+3) =2x+6

X - NUMĂR PAR

1)2x+6=54

2x=54-6

2x=48

x=48:2

x=24

2)2x+6=52

2x=52-6

2x=46

x=46:2

x=23

3)2x+6=50

2x=50-6

2x=44

x=44:2

x=22

și tot așa mai departe