August 2022 2 13 Report
решите уравнения:

1) 6,89 + 5,37 + 3,11 + 4,63

2) 36 * 2,7 * 5/8

3)0,3 * 0,783 + 0,3 * 0,217

4)3,4 * 5с

5) 7,5а * 2х

6) 6х - 13х

7) 5b + 7b - 8b

8) 9a - 1a - 1,2y + 0,5y

9) 2a + (3a - 8a)

заранее спасибо
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