Verified answer

Ответ:

Объяснение:

a) 3b + (5a - 7b) = 3b + 5a - 7b = b(3 - 7) + 5a = 5a - 4b

б) -3q - (8p - 3q) = -3q - 8p + 3q = q(-3 + 3) - 8p = 0q - 8p = -8p

в) (2 + 3a) + (7a - 2) = 2 + 3a + 7a - 2 = a(3 + 7) + 1(2-2) = 10a + 0 = 10a

г) -(11a + b) - (12a - 3b) = -11a - b - 12a + 3b = a(-11-12) + b(-1 + 3) = 2b - 23a

д) a + (a - 10) - (12 + a) = a + a - 10 - 12 - a = a( 1 + 1 - 1) + 1(-10 - 12) = a - 22

е) (6x - 8) - 5x - (4 - 9x) = 6x - 8 - 5x - 4 + 9x = x(6 - 5 + 9) + 1(-8 -4) = 10x - 12

Verified answer

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