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Rosa Frazier
Mathematics
23 May, 17:41
3x-y=16
2x-y=12
substitution method
+3
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2
)
Oliver Cooley
23 May, 17:48
0
Multiply 2nd equation by - 1 and add to first one
3x-y=16
-2x+y=-12 +
1x+0y=4
x=4
sub back
2x-y=12
2 (4) - y=12
8-y=12
minus 8 both sides
-y=4
times - 1
y=-4
(x, y)
(4,-4)
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Gunnar Blanchard
23 May, 17:59
0
The answer should be (4, - 4)
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