Here's the question you clicked on:
ashleylynn
lxl+5=18 a. 5 or - 5 b. 13 or - 13 c. 18 or - 18 d. 23 or - 23
subtract 5 from both sides |x| = 13 the are now 2 equations x = 13 and x = -13
We have |x|+5=18 |x| or Absolute Value function is defined as x for x>=0 -x for x<0 so here we have \[|x|+5=18\] or \[|x|=13\] or \[x=\pm 13\]