Question 358589
<pre>
The | is the shifted backslash key \ right above the Enter key.

|2x+1| = 2.8

What's between the absolute value bars can be +2.8 or -2.8 because the
absolute value bars will make it positive if it's negative.  So therefore
we have two equations and unually two solutions:

2x+1 = 2.8  is one equation and 2x+1 = -2.8 is the other:

Solve these two equations and you will have the two solutions

{{{0.9}}} and {{{-1.9}}}

Edwin</pre>