KoolAidMan1111
KoolAidMan1111
22-01-2018
Mathematics
contestada
What is x-y=7 and 3x+2y=6
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Аноним
Аноним
22-01-2018
x - y = 7 Muliply by 2:-
2x - 2y = 14
3x + 2y = 6 Add the 2 equations:-
5x = 20
x = 4
So 4 - y = 7
y = -3
Answer x = 4 , y = -3
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