81 + (9 + w) which expression is equivalent to the expression shown above.

Answer 1

The expression provided is:

81 + (9 + w)

To simplify this, we can use the associative property of addition, which states that numbers can be grouped in any order without changing the sum. In other words, (a + b) + c = a + (b + c) = a + b + c.

So for the expression given, we can simply add the numbers together and combine like terms. We do not change the operation, only the grouping:

81 + 9 + w

Now we can add the numerical constants together:

90 + w

Therefore, the equivalent expression to 81 + (9 + w) is:

90 + w