Question

Aflați valorile numărului natural x care verifică egalitatea (3x+5x) : 4<10​

Answer 1

(3x + 5x) : 4 < 10

3x + 5x < 40

8x < 40

x < 5

x ∈ {0, 1, 2, 3, 4}

Answer 2

Răspuns:

(3x+5x):4 < 10

8x < 10·4

x < 40:8

x < 5

x ∈ {0,1,2,3,4}