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Mathematics
Miles
4 September, 08:58
What is 2x-3y=9
-5x-3y=30
+5
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Marley Braun
4 September, 09:11
0
2x - 3y = 9 ⇒ - 10x + 15y = - 45
-5x - 3y = 30 ⇒ - 10x - 6y = 60
9y = 15
9 9
y = 1 2/3
2x - 3 (1 2/3) = 9
2x - 5 = 9
+5 + 5
2x = 4
2 2
x = 2
(x, y) = (2, 1 2/3)
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Kianna Glass
4 September, 09:32
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If your in algebra 1 then i'm pretty sure you subtract the 2x and that cancels and subract the 2x with the 9 and you have - 3y = - 2x+9 so you divide - 3 to the - 3y, the - 2x and positive 9 and your answer will be y=2/3x-3
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