document.write( "Question 1206099: A textbook store sold a combined total of 215 psychology and history textbooks in a week. The number of psychology textbooks sold was 57 more than the number of history textbooks sold. How many textbooks of each type were sold? \n" ); document.write( "
Algebra.Com's Answer #843322 by josgarithmetic(39617)\"\" \"About 
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Total of 215 books
\n" ); document.write( "h, number of History books
\n" ); document.write( "h+57, number of Psychology books\r
\n" ); document.write( "\n" ); document.write( "\"h%2B%28h%2B57%29=215\"
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\n" ); document.write( "\"2h=215-57\"\r
\n" ); document.write( "\n" ); document.write( "\"h=%28215-57%29%2F2\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28h=79%29\"\r
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