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2ºTelevisor=x+50
Ahora:2x+50=630
x=290
entonces el primero televisor costó 290 y el otro 340
Costo 1 = m + 50
Costo 2 = m
Resolvemos :
m + 50 + m = 630
m + m + 50 = 630
2m = 630 - 50
2m = 580
m = 580/2
m = 290
m + 50 = 290 + 50 = 340
Solución :
Precio del 1 = $340
Precio del 2 = $290