document.write( "Question 296158: I need help. I have no idea how to solve this word problem using the five step method. A new edition of a video game costs $60, but it's previous version only costs $40. If 15 games are sold for $840, how many copies of the newest game sold? \n" ); document.write( "
Algebra.Com's Answer #217105 by JBarnum(2146)\"\" \"About 
You can put this solution on YOUR website!
not a percentage or ratio problem but def an algebraic problem
\n" ); document.write( "\"40a%2B60b=840\"
\n" ); document.write( "a+b=15
\n" ); document.write( "a=15-b
\n" ); document.write( "\"40%2815-b%29%2B60b=840\"
\n" ); document.write( "\"600-40b%2B60b=840\"
\n" ); document.write( "\"600%2B20b=840\"
\n" ); document.write( "\"20b=240\"
\n" ); document.write( "\"b=12%7D%7D%0D%0A%7B%7B%7Ba=15-b\"
\n" ); document.write( "\"a=15-12\"
\n" ); document.write( "\"a=3\"
\n" ); document.write( "a= previous version
\n" ); document.write( "b= new version
\n" ); document.write( "so
\n" ); document.write( "12 new versions and 3 previous versions\r
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