document.write( "Question 138862: A saleswoman at a car dealership earns $1200 per month plus a 9% commission on her total sales. If she earned $7320 last month, what was the amount of her sales? \n" ); document.write( "
Algebra.Com's Answer #101306 by checkley77(12844)\"\" \"About 
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1,200+.09x=7,320
\n" ); document.write( ".09x=7,320-1,200
\n" ); document.write( ".09x=6,120
\n" ); document.write( "x=6,120/.09
\n" ); document.write( "x=68,000 is the amount of the sales.
\n" ); document.write( "proof
\n" ); document.write( "1,200+.09*68,000=7,320
\n" ); document.write( "1,200+6,120=7,320
\n" ); document.write( "7,320=7,320
\n" ); document.write( "
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