Question 1194986
.
<pre>

Let x be the total number of the stickers.


Then Andrew has {{{(1/5)x}}};  Blaze has  {{{(1/5)x+10}}}  and Cadmus has 20 stickers.


With it, write the equation for the total

    {{{(1/5)x}}} + {{{(1/5)x+10}}} + 20 = x.


To solve it, multiply both sides by 5

    x + (x+50) + 100 = 5x.


Simplify and find x

    50 + 100 = 5x - x - x

      150    =     3x

        x    =     150/3 = 50.


<U>ANSWER</U>.  In all, there were 50 stickers.
</pre>

Solved.


Is everything clear to you of my solution ?