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9. Simplify this expression: [tex]$13 + (-12) - (-5) =$[/tex] ?

A. -6
B. -30
C. 6
D. 30


Sagot :

To simplify the expression [tex]\(13 + (-12) - (-5)\)[/tex], we will proceed step by step:

1. First, focus on simplifying inside the parentheses. The negative of a negative number turns into a positive number:
[tex]\[ -(-5) = +5 \][/tex]

2. The expression now looks like:
[tex]\[ 13 + (-12) + 5 \][/tex]

3. Next, we perform the addition and subtraction from left to right:
[tex]\[ 13 + (-12) \][/tex]
Simplifying this part:
[tex]\[ 13 - 12 = 1 \][/tex]

4. Now we add the remaining term:
[tex]\[ 1 + 5 = 6 \][/tex]

After performing all these steps, the simplified value of the expression [tex]\(13 + (-12) - (-5)\)[/tex] is:
[tex]\[ 6 \][/tex]

Thus, the correct answer is:
C. 6