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Mathematics
Coy
3 December, 23:25
2x + y = 4
3x - y = 6
+1
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Brynlee
3 December, 23:52
0
So, just add
2x+y=4
3x-y=6 +
5x+0y=10
5x=10
divide 5
x=2
sub back
2x+y=4
2 (2) + y=4
4+y=4
y=0
x=2
y=0
(2,0)
the result of adding the equation is 5x=10
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Pugsley
4 December, 02:21
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y = (1/2) x-1
You have to set both to y and then add. After that you solve for y
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