document.write( "Question 16458: Please answer the following word problem. This was an algebra problem on my 15 year old's homework tonight and although it is probably simple, my husband and I can not for the life of us help her figure it out. Here it goes:\r
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document.write( "The difference of two numbers equals 33. If four times the lesser number is subtracted from three times the greater number, the difference is 62. Find the numbers. \n" );
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Algebra.Com's Answer #8026 by pwac(253)![]() ![]() ![]() You can put this solution on YOUR website! This is solved by linear system of equations. \n" ); document.write( "First find equations from information given \n" ); document.write( "Let n=the greater number and x= the lesser togive \n" ); document.write( "n-x=33-----(1) our other equation is: \n" ); document.write( "3n-4x=62---(2) \n" ); document.write( "if we re-arrange(1) \n" ); document.write( "n=33+x and substitute this value into (2) \n" ); document.write( "3(33+x)-4x=62 remove brackets by multiplying by the 3 \n" ); document.write( "99+3x-4x=62 \n" ); document.write( "99-x=62 subtract 99 from both sides \n" ); document.write( "-x=-37 multiply both sides by -1 \n" ); document.write( "x=37 put this value of x into---(1) to get: \n" ); document.write( "n-37=33 add 37 to both sides \n" ); document.write( "n=70 \n" ); document.write( "There are your two numbers 70 and 37 \n" ); document.write( "Hope this helps \n" ); document.write( "Pete \n" ); document.write( " |