Question 891997
<pre>
{{{500}}}{{{""=""}}}{{{.75x-(750+.25x)}}}

Remove the parentheses of -(750+.25x) by changing the signs of
both terms inside the parenthese, getting -750-.25x:

{{{500}}}{{{""=""}}}{{{.75x-750-.25x}}}

Combine the terms .75x and -.25x as .50x

{{{500}}}{{{""=""}}}{{{.50x-750}}}

Get rid of the -750 by adding +750 to both sides

{{{500+750}}}{{{""=""}}}{{{.50x-750+750}}}

Combine 500+750 and get 1250 on the left, and cancel -750 and +750 on the right.

{{{1250}}}{{{""=""}}}{{{.50x}}}

Divide both sides by .50

{{{1250/.50}}}{{{""=""}}}{{{.50x/.50}}}

divide on the left, cancel .50's on the right

{{{2500}}}{{{""=""}}}{{{x}}}

Solution: 2500

Edwin</pre>