Question 663259
<pre>
I guess you mean this:

<font face="symbol">Ö</font><span style="text-decoration: overline">-3x + 17</span> = 10

We square both sides of the equation:

(<font face="symbol">Ö</font><span style="text-decoration: overline">-3x + 17</span>)² = (10)²

Squaring a square root takes away the radical on the left, and (10)² is 100,
so we have

-3x + 17 = 100

     -3x = 83

       x = {{{83/(-3)}}}

       x = {{{-83/3}}}       

Edwin</pre>