<img src="https://tex.z-dn.net/?f=%20%7C%20-%209%20-%2012%7C%20" id="TexFormula1" title=" | - 9 - 12| " alt="

belka [17]

4 years ago

n="absmiddle" class="latex-formula">

Mathematics

1 answer:

Pavel [41]4 years ago

7 0

|a| = a if a ≥ 0

|a| = -a if a < 0

|-9 - 12| = |-21| = -(-21) = 21

<h3>Answer: |-9 - 12| = 21</h3>

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