Question

Помогите плис........................



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Answer 1

Ответ:

а)

7x + 2x = x*(7+2) = 9x

11y - 3y = y*(11-3) = 8y

9a + 6a = a*(9+6) = 15a

13c - 3c = c*(13-3) = 10c

б)

3x * 5 * 10 = (3 * 5 * 10) x = 150x

4 * 2y * 15 = (4 * 2 * 15) y = 120y

70 * 50y * 2 = (70 * 50 * 2) y = 7000y

6a * 300 * 50 = (6 * 300 * 50) a = 90000a