- 2a - (a - 3p) = - 2a - a + 3p = - 3a + 3p = 3(p - a) = 3 * (- 7) = - 21
Ответ : - 21
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- 2a - (a - 3p) = - 2a - a + 3p = - 3a + 3p = 3(p - a) = 3 * (- 7) = - 21
Ответ : - 21