Which of the following expressions is equivalent to −9(n+10)

Question

?(1 point)
Responses

9⋅n−90
9 times n minus 90

−9⋅n−90
negative 9 times n minus 90

−9⋅n+10
negative 9 times n plus 10

−9⋅n+90

Answer 1

To simplify the expression \(-9(n + 10)\), we can distribute \(-9\) to both terms inside the parentheses:

\[ -9(n + 10) = -9n - 9 \cdot 10 = -9n - 90 \]

So the equivalent expression is:

\(-9 \cdot n - 90\) (which is also written as \(-9n - 90\)).

Therefore, the correct response is:

−9⋅n−90 (negative 9 times n minus 90).