Evaluate if r=-8: |-15-r|+|r|=

Answer 1

you plug in -8 for r.

I -15- (-8) l + l -8 l

l -7 l+ l-8 l

since you have absolute value bars anything in absolute value turns positive and you take away the bars.

soo.......

7+8
=15

Answer 2

Take the absolute value of -15+8=-7
absolute value of -7=7
Add the absolute value of -8 to 7
the absolute value of -8=8
7=8=15