Work the following problem using the rule for addition of real numbers. $(-9+2)+[1+(-7)]+(-4)$
A) $1$
B) $-23$
C) $-17$
D) $21$
E) $17$

Question

Quizplus · Accepted Answer

Using the rule for addition of real numbers, we can simplify the given expression as follows: 
\begin{align*}
((-9+2)+[1+(-7)]+(-4)) &= (-7+[1-7]+(-4)) \
&= (-7+(-6)+(-4)) \
&= -17
\end{align*}
Therefore, the best choice is C, which is -17.

Work the Following Problem Using the Rule for Addition of Real