bruuii00bruui
bruuii00bruui
28-04-2016
Mathematics
contestada
2x – y = 6 5x + 10y = –10
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BossLife123
BossLife123
28-04-2016
2x-y=6;5x+10y=-10. -y=-2x+6. -y/-1=-2x+6/-1. y=2x-6. 5x+10y=-10. 5x+10(2x-6)=-10. 25x-60=-10. 25x=50. 25x/25=50/25. y=2x-6. y=(2)(2)-6. y=-2. Therefore, x=2 and y=-2
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