Question #55c9f

1 Answer
Oct 18, 2017

Answer:

(4,2) or x=4 and y=2

Explanation:

Since you are given the second equation solved in terms of x, you can plug what x equals in for x in the first equation to get rid of the x variable. This would be:
#5color(red)((4y-4))-4y=12#
You would then distribute and simplify:
#20y-20-4y=12#
#16y-20=12#
#16y=32#
#y=2#
You then plug this y value back into one of the original equations to find x. Let's use the second equation:
#x=4color(red)((2))-4#
So #x=4#
And the overall solution, in coordinate form, would be: (4,2)