How do you simplify $| - 31 + 15 |$ $abs( -31+15)$ ?

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Answer 1 · 2016-03-24T00:29:32

$16$ $16$

$1$ $1$ . Within the bars of the equation, do the addition of $- 31$ $-31$ and $15$ $15$ .

$| - 31 + 15 |$ $|-31+15|$

$= | - 16 |$ $=|-16|$

$2$ $2$ . The bars indicate that the result is always positive. Thus, remove the negative sign as well as the bars.

$=color(green)(|bar(ul(color(white)(a/a)16color(white)(a/a)|)))$

How do you simplify abs( -31+15)|−31+15| abs( -31+15)?