Question

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Answer 1

x + 2y = 9 ---> x = 9 - 2y

2x - y = -2

2(9 - 2y) - y = -2

18 - 4y - y = -2

-5y = -20

y = 4

x = 9 - 2y

x = 9 - 2(4)

x = 1