Question

Aflați pe c:

0+[(1+6)/c+5]/6=9/9

Answer 1

Răspuns:  c = 7

Explicație pas cu pas:

0 + ( 7 : c + 5 ) : 6 = 1

( 7 : c + 5 ) : 6 = 1 - 0

( 7 : c + 5 ) : 6 = 1

7 : c + 5 = 1 × 6

7 : c + 5 = 6

7 : c = 6 - 5

7 : c = 1

c = 7 : 1

c = 7 → numarul, aflat prin metoda mersului invers

Answer 2

0 + [ ( 1 + 6 ) : c + 5 ] : 6 = 9 : 9

0 + ( 7 : c + 5 ) : 6 = 1

( 7 : c + 5 ) : 6 = 1 - 0

( 7 : c + 5 ) : 6 = 1

7 : c + 5 = 1 × 6

7 : c + 5 = 6

7 : c = 6 - 5

7 : c = 1

c = 7 : 1

c = 7