Question

Розкрити дужки 21-(12+5y)

Answer 1

Ответ:

9-5y

Пошаговое объяснение:

21-(12+5y)= 21- 12-5y = 9-5y

Answer 2

Ответ:

Пошаговое объяснение:

перед скобкой стоит знак "-",после раскрытия слагаемые в скобках поменяют свой знак на противоположный.

21-(12+5y)=21 -12 - 5у= 9 - 5у

Answer 3

Solution:

To expand the expression 21-(12+5y), we can use the distributive property, which states that for any real numbers a, b, and c:

- Distributive Property: For all real numbers a, b, and c, a * (b + c) = a * b + a * c.

Using this property, we can expand the given expression as follows:

21 - (12 + 5y) = 21 - 12 - 5y

Now, let's simplify the expression:

21 - 12 - 5y = 9 - 5y

So, the expanded form of the expression 21-(12+5y) is 9 - 5y.

Summary:

The expression 21-(12+5y) can be expanded to 9 - 5y using the distributive property.

I hope this helps! If you have any further questions, feel free to ask.