document.write( "Question 1015349: A Chinese problem states that several people combined their money to buy a farm tool to share. If each person paid 8 coins, they had 3 too many. If each person paid 7 coins, there were 4 coins too short. How many people were there, and what was the price of the farm tool? \n" ); document.write( "
Algebra.Com's Answer #631709 by macston(5194)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "y=cost of tool; x=number of people \n" ); document.write( ". \n" ); document.write( "y=8x-3 \n" ); document.write( "y=7x+4 \n" ); document.write( ". \n" ); document.write( "8x-3=7x+4 \n" ); document.write( "x-3=4 \n" ); document.write( "x=7 \n" ); document.write( ". \n" ); document.write( "ANSWER 1: There were 7 people. \n" ); document.write( ". \n" ); document.write( "y = 8x-3 = 8(7)-3 = 56-3 = 53 \n" ); document.write( ". \n" ); document.write( "ANSWER 2: The tool cost 53 coins. \n" ); document.write( ". \n" ); document.write( "CHECK: \n" ); document.write( "y=7x+4 \n" ); document.write( "53=7(7)+4 \n" ); document.write( "53=49+4 \n" ); document.write( "53=53 \n" ); document.write( ".\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |