Question

si: abc x 999 = ...678: calcule:
(a + b + c)?​

Answer 1

Respuesta:

7

Explicación paso a paso:

(ABC)(1000-1) = ...678

ABC000 - ABC = ...678

8 + C = 10 —> C = 2

B + 7 + 1 = 10 —> B = 2

A + 6 + 1 = 10 —> A = 3

A + B + C = 3 + 2 + 2 = 7

Answer 2

Respuesta:

E/mmmmmmmmm seria 19con 6 de 6