Ответ:
5(4+4)-2(-4+7)=40-6=34
[tex]5(4 – а) – 2(a+7) = 20 - 5a - 2a - 14 = 6 - 7a = 6 - 7 \times ( - 4) = 6 - ( - 28) = 6 + 28 = 34[/tex]
Ответ: 34.
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Ответ:
5(4+4)-2(-4+7)=40-6=34
[tex]5(4 – а) – 2(a+7) = 20 - 5a - 2a - 14 = 6 - 7a = 6 - 7 \times ( - 4) = 6 - ( - 28) = 6 + 28 = 34[/tex]
Ответ: 34.