Question 1128612
.
<pre>
Let  x = the cost of the system.


Then the cost of the games is 3x, according to the condition.


Your "money" equation is


    x + 3x = 564  dollars

    4x = 564

    x = {{{564/4}}} = 141 dollars is the cost of the system.


Then the cost of the games is  3*141 = 423  dollars.
</pre>

Solved.