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x-y=105
2x=6y+150...........x=6y+150 ................x=3y+75
2
sustituimos x=3y+75 en la primera ecuacion
x-y=105
3y+75-y=105
3y-y=105-75
2y=30
y=30/2
y=15
si y=15
x-y=105
x-15=105
x=105+15
x=120
el numero mayor es 120