Question

ayuda por f AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAÀAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA ​

Answer 1

Explicación paso a paso:

5 4 2 x

2 7

---------

* 7 9 4

* 9 4

----------

* 4 6 3 4

7xc termina en 4

C= 2

7xb + 1 que llevas +4 termina en 3

b = 4

7xa +2 que llevas mas + 9 termina en 6

a = 5

Solo eso

abc = 542

abc - bca

542 - 425 = 117