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Mathematics
Linda Ryan
26 September, 14:51
X=2y-1
3x-2y=-3
What are the coordinates
+2
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1
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Gucci
26 September, 16:52
0
3x-2y=-3 (label equation 1) and x=2y-1 (label equation 2)
3 (2y-1) - 2y=-3 (sub 2 into 1)
6y-3-2y=-3
4y-3=-3
+3 + 3
4y=0
y=0
sub y=o into equation 2
x = 2 (0) - 1
x=-1
therefore the co-ordinates are (-1,0)
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