Respuesta:
a*b = 21
Explicación paso a paso:
Número de 2 cifras: ab
ba = ab - 36
10b + a = 10a + b - 36
36 = 9a - 9b
36 = 9(a -b)
a - b = 4
a + b = 10 | +
a - b = 4 |
2a = 14
a = 7
b = 3
a*b = 7*3
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Respuesta:
a*b = 21
Explicación paso a paso:
Número de 2 cifras: ab
ba = ab - 36
10b + a = 10a + b - 36
36 = 9a - 9b
36 = 9(a -b)
a - b = 4
a + b = 10 | +
a - b = 4 |
2a = 14
a = 7
b = 3
a*b = 7*3
a*b = 21