Question

Aflați numărul natural "n" ex. 15​

Answer 1

7×2^n-2=54

7×2^n=54+2

7×2^n=56

2^n=8

2^n=2³

n=3

Answer 2

Răspuns:

7×2^n = 54+2

7×2^n = 56

2^n = 56:7

2^n= 8

n=3