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Quinton Herrera
Mathematics
23 November, 10:48
Using substitution 3x-5y=11 and x-3y=1
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Marquise Little
23 November, 10:54
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3x - 5y = 11 ⇒ 3x - 5y = 11
1x - 3y = 1 ⇒ 3x - 9y = 3
4y = 8
4 4
y = 2
3x - 5 (2) = 11
3x - 10 = 11
+10 + 10
3x = 21
3 3
x = 7
(x, y) = (7, 2)
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