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3x + 4 = 2x + 26
3x - 2x = 26 - 4
x = 22
Respuesta.
Tiene 22 años
3x + 4 = 2x + 26
3x - 2x = 26 - 4
x = 22
RESPUESTA:
22 años
COMPROBACION:
Reemplazamos x en la primera ecuacion:
3x + 4 = 2x + 26
3(22) + 4 = 2(22) + 26
66 + 4 = 44 + 26
70 = 70