document.write( "Question 992198: Twice a number minus a second number is -1. Twice the second number added to three times the first number is 9. Find the number. \n" ); document.write( "
Algebra.Com's Answer #611829 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! Twice a number minus a second number is -1. Twice the second number added to three times the first number is 9. Find the number.\r \n" ); document.write( "\n" ); document.write( "let x=number \n" ); document.write( "let y=2nd number \n" ); document.write( "2x-y=-1 \n" ); document.write( "y=-2x+1 \n" ); document.write( "plug in y for x\r \n" ); document.write( "\n" ); document.write( "2(-2x+1)+3x=9 \n" ); document.write( "-4x+2+3x=9 \n" ); document.write( "x=7 \n" ); document.write( " number=7 \n" ); document.write( " \n" ); document.write( " |