Question

Сократить: 14×5-14×3/21×9+21×3 ​

Answer 1

14 * 5 - 14 * 3/21 * 9 + 21 * 3 = 14 * 2/21*12 = 2/3 * 6 = 1/3 * 3 = 1/9

Answer 2

Ответ:

$70x+\frac{565}{9}$

Пошаговое объяснение:

Сокращаем и вычисляем:

$70x - \frac{14}{7*9}+63$

Опять сокращаем:

$70x - \frac{2}{9} + 63$

Теперь вычисляем:

$70x+\frac{565}{9}$

Answer 3

To simplify the expression 14×5 - 14×3 / 21×9 + 21×3, we can follow the order of operations (PEMDAS/BODMAS).

Step 1: Simplify the multiplication and division from left to right. 14×5 = 70 14×3 = 42 21×9 = 189 21×3 = 63

Step 2: Perform the division. 42 / 189 = 0.2222222222 (approximately)

Step 3: Substitute the results back into the expression. 70 - 0.2222222222 + 63

Step 4: Perform the remaining additions and subtractions. 70 - 0.2222222222 + 63 = 132.7777777778 (approximately)

Therefore, the simplified expression is approximately equal to 132.7777777778.