document.write( "Question 977172: Shopping at Super Sale Days, Martha buys her children 3 shirts and 2 pairs of pants for $85.50. She returns during the sale and buys 4 more shirts and 3 more pairs of pants for $123. What is the sale price of the shirts and pants? \n" ); document.write( "
Algebra.Com's Answer #598678 by FrankM(1040)![]() ![]() You can put this solution on YOUR website! 3S+2P=85.50 \n" ); document.write( "4S+3P=123\r \n" ); document.write( "\n" ); document.write( "Let's multiply the first equation by 3 and the second by 2\r \n" ); document.write( "\n" ); document.write( "9S+6P=256.50 \n" ); document.write( "8S+6P=246.00\r \n" ); document.write( "\n" ); document.write( "Subtract the second equation from the first.\r \n" ); document.write( "\n" ); document.write( "S=10.50\r \n" ); document.write( "\n" ); document.write( "and put that back into first equation\r \n" ); document.write( "\n" ); document.write( "3(10.50)+2P=85.50\r \n" ); document.write( "\n" ); document.write( "31.50+2P=85.50\r \n" ); document.write( "\n" ); document.write( "2P=54\r \n" ); document.write( "\n" ); document.write( "P=27\r \n" ); document.write( "\n" ); document.write( "Shirts are $10.50 Pants $27.00 \n" ); document.write( " |