Answer:

Step-by-step explanation:

When there is a ( + ) in front of an expression in parentheses, there is no need to change the sign of each term. That means, the expression remains the same. Just remove the parentheses

Collect like terms

Subtract 3 from 12

Collect like terms

Hope I helped!
Best regards! :D
It would be w beacuse xy and w
Answer:
4 - 3r
Step-by-step explanation:
D is just a statement of words, completely unrelated to math. C is an equation since because of the product and equal sign. hope that makes sense.
First of all, let's take a look on the question.

Here, 0 is added to 15 and the resultant is 15 only. So, we can say that 0 when added with any number gives the same number as the resultant.
So, the property is known as <u>Identi</u><u>ty</u> property because 0 is added to get the identity of the same number.
<u>The Correct Option:</u>

So, let's know more...
- Commutative property ➝ a + b = b + a
- Associative property ➝ a + (b + c) = (a + b) + c
- Distributive property ➝ a(b + c) = ab + ac
So this is the general form of these properties which is general observed in the rational numbers.
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