Let:
x = Dean
y = Víctor
Since Víctor has 2 times the trophies that Dean has, the amount of trophies Víctor has would be equal to 2x. Therefore,
y = 2x
The amount of trophies they have added together is 27. Therefore,
x + y = 27
We know that y = 2x, so we can substitute y for 2x in the equation x + y = 27. Therefore,
x + 2x = 27
Now solve for x.
x + 2x = 27
3x = 27
3x/3 = 27/3
x = 9
Dean has 9 trophies.
Since Víctor has 2 times the amount Dean has,
Víctor has 18 trophies
