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Кристинакосач
@Кристинакосач
July 2022
2
6
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решите уравнения 2+х /5 =4/9
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pavlinapolyakova
2+х/5=4/9 Домножим на 45
90+9х=20
9х= -70
х= -70/9= -7целых7/9
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lvtsarkovadasha
9(2+х)=5умножить на 4
18+х=20
х=20-18
х=2
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Answers & Comments
90+9х=20
9х= -70
х= -70/9= -7целых7/9
18+х=20
х=20-18
х=2