document.write( "Question 990064: Mary owns a carpet cleaning business. She charges $67.95 for a 2 bedroom house and $82.25 for a three bedroom house. Last month the company had a gross income of $4,413.00 for cleaning carpet in 8 more three bedroom houses than two bedroom houses. How many of each type did the company clean? \n" ); document.write( "
Algebra.Com's Answer #610165 by ikleyn(52803)\"\" \"About 
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\n" ); document.write( "Let x be the number of 2-bedroom houses, y be the number of 3-bedroom houses.\r
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\n" ); document.write( "\n" ); document.write( "Then you have a system of equations, according to the condition\r
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\n" ); document.write( "\n" ); document.write( "\"system%28-x+%2B+y+=+8%2C%0D%0A67.95%2Ax+%2B+82.25%2Ay+=+4413%29\".\r
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\n" ); document.write( "\n" ); document.write( "Solve it. For example, use the elimination method\r
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\n" ); document.write( "\n" ); document.write( "(y = 8 + x; \r
\n" ); document.write( "\n" ); document.write( "substitute it into the second equation; \r
\n" ); document.write( "\n" ); document.write( "you will get the equation for y only; \r
\n" ); document.write( "\n" ); document.write( "solve it; \r
\n" ); document.write( "\n" ); document.write( "then make back substitution . . . )\r
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