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chvankopetr
@chvankopetr
August 2022
1
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И последний вопрос...
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nKrynka
Решение
a) 0,6a + 0,4a - 0,4*55 = a - 22
- 8,3 - 22 = - 30,3
б) 2,6a - 1,3 - 16,4 = 2,6a - 17,7
2,6*6,5 - 17,7 = 16,9 - 17,7 = - 0,8
в) 1,2a - 8,4 - 5,4 + 1,8a = 3a - 13,8
3*(4. 1/3) - 13,8 = 13 - 13,8 = - 0,8
г) 2(1/3)a + 2(1/3)*6 - 7(2/3)*3 + 7(2/3)a = 10a - 14 + 23 = 10a + 9
10*(-0,7) + 9 = - 7 + 9 = 2
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Answers & Comments
a) 0,6a + 0,4a - 0,4*55 = a - 22
- 8,3 - 22 = - 30,3
б) 2,6a - 1,3 - 16,4 = 2,6a - 17,7
2,6*6,5 - 17,7 = 16,9 - 17,7 = - 0,8
в) 1,2a - 8,4 - 5,4 + 1,8a = 3a - 13,8
3*(4. 1/3) - 13,8 = 13 - 13,8 = - 0,8
г) 2(1/3)a + 2(1/3)*6 - 7(2/3)*3 + 7(2/3)a = 10a - 14 + 23 = 10a + 9
10*(-0,7) + 9 = - 7 + 9 = 2