Question

Aflați numărul necunoscut.
a 5^4 : 5^2 + 5. (55 – X: 5) = 5^3;

Answer 1

5^2 + 5*(55-x:5) = 5^3

25 + 5*(55-x:5) = 125

5*(55-x:5) = 125-25

5*(55-x:5) = 100

55-x:5 = 100:5

55-x:5 = 20

x:5 = 55-20

x:5 = 35

x = 35*5

x = 175