Answer:
(2,4)
Explanation:
One way to solve a system is called substitution. Because one of the equations is set up in a way where we know what Y equals in terms of X we can plug that into the other equation for Y and then we can solve for X because we will then only have one variable. Since the second equation tells us that y is equal to 2x we will plug 2x into the first equation where we see Y and that gives us
4x+2x =12
now we can combine and solve for x
6x=12
x=2
and now that we have 2 we can plug that back into the second equation and solve for y
2 times 2 = y
y=4 so the answer is (2,4)
I hope this helps and please don't hesitate to ask if there is anything still unclear!