Решить примеры по действиям: 1). 24: 3+73•3-(8-4)•17 2). (83+257)•4+218-5•10

Question

Математика: Решить примеры по действиям: 1). 24: 3+73•3-(8-4)•17 2). (83+257)•4+218-5•10

мама1021 · Accepted Answer

1. 2x - 8 = 4
2x = 12
x = 6
2. 45 - 3x = 22
3x = 23
x = 23/3 = 7 2/3
3. 50 - 5x = 30
5x = 20
x = 4
4. 56/(x-1) = 7
56 = 7x - 7
7x = 63
x = 9
5. (x + 4)3 = 27
x + 4 = 9
x = 5
6. 3 - 2x = 1
2x = 2
x = 1
7. 48/(x+6) = 6
48 = 6x + 36
6x = 12
x = 2
8. 6 - x = 1
x = 5
9. x/7 = 9
x = 63
10. (8 + x)3 = 30
8 + x = 10
x = 2
11. 15 + 2x = 17
2x = 2
x = 1
12. x/7 = 9
x = 63
13. (9 - x)/6 = 36
9 - x = 216
x = -207
14. x/11 = 2
x = 22
15. 15 + 3x = 12
3x = -3
x = -1
16. 9 - 5x = 4
5x = 5
x = 1

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