Answer:
1
Step-by-step explanation:
x + 3y = 7
x + 3y = 2
3y = 3 x y
y = 2
3 x 2 = 6y
x + 6 = 7
7 - 6 = 1
x = 1
Plz give brainliest
4x+4y-8
hope this helps