Question 326556
x+y=2x-4
x-3y=-20


x-3y=-20
x=3y-20



x+y=2x-4
3y-20+y=2(3y-20)-4
4y-20=6y-44
2y=24
y=12


x=3y-20=3(12)-20=36-20=16


Answers: x=16, y=12