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Jayleen Joseph
Mathematics
21 April, 20:42
2x-y=17
X-y = 10
Using the elimination method
+2
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2
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Leonard Moore
21 April, 21:02
0
2x-y=17
x-y=10
2x-y=17
-2 (x-y) = - 2 (10)
-2x+2y=-20
(cross out the - 2x's)
-y=17
+2y=-20
y=3
(plug 3 into y to find x)
(3) - y=10
-y=7
y=-7
x=3 & y=-7
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Lindsey Porter
21 April, 21:10
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Easy just subtract 2x from each side then divide
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