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

1 Answer
Mar 24, 2016

#16#

Explanation:

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

#|-31+15|#

#=|-16|#

#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)|)))#