Question

21х + 7у = 42
- 5х + 5y = 10
X and y

Answer 1

Explanation:

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)

Answer 2

X=5 y=7

Explanation:

i am pretty sure im right. if im wrong im sorry