Answer:
x = 0.71; y = 2.43
Explanation:
y = 2x + 1
y = 9x - 4
9x - 4 = 2x + 1
7x = 5
x = 5/7
y = 2(5/7) + 7/7
y = 10/7 + 7/7
y = 17/7
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