СОКРАТИТЕ ДРОБЬ 63*12+63*15 И 63*12-63*15

Question

СОКРАТИТЕ ДРОБЬ 63*12+63*15 И 63*12-63*15

Answer 1

...ответ на фоторграфии...

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Answer 2

63×12+63×15 = 63(12+15) = 12+15 = 27

63×12-63×15 = 63(12-15) = 12-15 = -3

27:(-3) = -9