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9966 [12]
3 years ago
5

5x+2y=9 3x-7y=-11 Qual o valor do X e do Y?

Mathematics
1 answer:
Alenkasestr [34]3 years ago
5 0
5x+2y=9
3x-7y=-11
5(1)+2(2)=9
5+4=9
3(1)-7(2)=-11
3-(14)=-11

x= 1
y= 2
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