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20.02.2020 •
Mathematics
3. 5x - y = 4
2x + 2y = 16
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Ответ:
x=2.67, y =5.35
Step-by-step explanation:
Ответ:
If you add up 57+23=80 40+40=80 so 40 is the answer they will have the same amount Alice gets 40 and her sister gets 40