Giúp tôi với đây là toán lớp 7 học kì 1
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Mathematics, 21.06.2019 21:50
6x + 3y = -6 2x + y = -2 a. x = 0, y = -2 b. infinite solutions c. x = -1, y = 0 d. no solution
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Mathematics, 21.06.2019 22:00
Which two undefined geometric terms always describe figures with no beginning or end?
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Mathematics, 21.06.2019 22:00
Percent increase and decrease. original number: 45 new number: 18
Answers: 1
Mathematics, 13.06.2020 10:57
Biology, 13.06.2020 10:57
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Mathematics, 13.06.2020 10:57
English, 13.06.2020 10:57
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English, 13.06.2020 10:57
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Mathematics, 13.06.2020 10:57