document.write( "Question 959342: Three times one number plus a second number is 40,and the one number minus the second number is 4. Find the numbers. \n" ); document.write( "
Algebra.Com's Answer #586395 by macston(5194)![]() ![]() You can put this solution on YOUR website! F=first number: S=second number \n" ); document.write( "F-S=4 \n" ); document.write( "F=S+4 \n" ); document.write( "3F+S=40 Substitute for F \n" ); document.write( "3(S+4)+S=40 \n" ); document.write( "3S+12+S=40 \n" ); document.write( "4S=28 \n" ); document.write( "S=7 ANSWER 1: The second number is 7. \n" ); document.write( "F=S+4=7+4=11 ANSWER 2: The first number is 11 \n" ); document.write( "CHECK: \n" ); document.write( "3F+S=40 \n" ); document.write( "3(11)+7=40 \n" ); document.write( "33+7=40 \n" ); document.write( "40=40 \n" ); document.write( " |