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Llamaremos tanto A como B con X
Donde A = 2x
..........B = x
Y la suma de las dos es igual a 36 años
Entonces:
x + 2x = 36
3x = 36
x = 36/3
x = 12
Reemplazando:
A = 2x ->2(12) = 24 años
B = x = 12 años
Espero ayude
A = 2x
B = x
2x + x = 36 Esta es la formula, entonces solo despejamos x
3x = 36
x = 36/3
x = 12
Entonces B = 12 y A = 24