Answer:
(7,3)
Step-by-step explanation:
x-3y=-2
x+3y=16
find x for equation 1
x=3y-2
substitute that x for equation 2
3y-2+3y=16
simplify
6y-2=16
add 2 to both sides
6y=18
divide by 6 on both sides
y=3
Then substitute y for any of the equations, I chose 2 because y is positive
x+3(3)=16
x+9=16
subtract 9 from both sides
x=7
