izadora1
izadora1
11-10-2016
Mathematics
contestada
the solution for{x-y=-2
2x+y=8
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Аноним
Аноним
15-10-2016
I hope this helps you
x-y=-2 y=x+2
2x+y=8
2x+x+2=8
3x=8-2
3x=6
x=2
y=x+2 y=2+2 y=4
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