Добрый вечер ! Если вам не сложно - прошу помочь с Алгеброй (7 кл.)
№1
а) (3x - 5) - (-2x + 7) = ....
б) -2 * (2,5m - 1) + 3 * (m - 4) = ....
в) 7a -5b -5a + 8b = ....
г) 2 * (3m - n) - 9 * (m - 2n) = ....
№2
а) -3 * 1,46 + 13 * 1,46 = ....
Спасибо за внимание !
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