Answer:
X=5 y=7
Step-by-step explanation:
i am pretty sure im right. if im wrong im sorry
21x + 7y = 42
-5x + 5y = 10
105x + 35y = 210
-35x - 35y = -70
70x = 140
x = 2
-10 + 5y = 10
5y = 20
y = 4
(2, 4)
