3x + 3y = 27

y = 2x

2 answers

Hope this helps <3!
Answer: 3
Does not help to simply give part of the answer with out the work!!!!
Most teachers will tell you that the method or the work is more important
than just stating the answer.

3x + 3y = 27
step 1:
x + y = 9
sub in y = 2x
x + 2x = 9
3x=9
x = 3
then in y = 2x , y = 6

solution: x=3, y=6