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x=y+5
6x+4y=480........6x=480-4y............x=480-4y
6
hacemos igualacion
y+5=480-4y
6
6(y+5)=480-4y
6y+30=480-4y
6y+4y=480-30
10y=450
y=450/10
y=45
si y=45
x=y+5
x=45+5
x=50
cada pantalon vale 50 euros
cada camisa vale 45 euros