Number system: Find the sum or difference.

Ask by Ruiz Cummings. in the United States

Mar 11,2025

Question

Number system: Find the sum or difference. $$ \begin{array}{l}-5+12 \ 9-19\end{array}-4+(-6) $$ $$ 4-(-9) $$

UpStudy AI · Accepted Answer

We will evaluate each expression separately.

1. Evaluate
   $$
   -5+12.
   $$
   Adding 12 to -5 gives
   $$
   -5+12=7.
   $$

2. Evaluate
   $$
   9-19.
   $$
   Subtracting 19 from 9 gives
   $$
   9-19=-10.
   $$

3. Evaluate
   $$
   -4+(-6).
   $$
   Adding -6 to -4, we have
   $$
   -4+(-6)=-4-6=-10.
   $$

4. Evaluate
   $$
   4-(-9).
   $$
   Subtracting -9 is equivalent to adding 9:
   $$
   4-(-9)=4+9=13.
   $$

Thus, the final results are:
$$
-5+12=7,\quad 9-19=-10,\quad -4+(-6)=-10,\quad \text{and}\quad 4-(-9)=13.
$$
The results are: - $$ -5 + 12 = 7 $$ - $$ 9 - 19 = -10 $$ - $$ -4 + (-6) = -10 $$ - $$ 4 - (-9) = 13 $$

Number system: Find the sum or difference.

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