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Al anterior = m - 1
m + (m - 1) = 19
m + m - 1 = 19
2m - 1 = 19
2m = 19 + 1
2m = 20
m = 20/2
m = 10
Anterior = 10 - 1 = 9
Los números son : 9 y 10
Tenemos.
El numero = x
El anterior del numero = x - 1
x + x - 1 = 19
2x - 1 = 19
2x = 19 + 1
2x = 20
x = 20/2
x = 10
El numero = x = 10
El anterior = x - 1 = 10 - 1 = 9
Respuesta.
Los numeros son el 9 y 10