document.write( "Question 17510: I am having problems making this into an equation...\r
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document.write( "Kevin is 5 years older than Lisa. Four years ago, Kevin was twice as old as Lisa was then. How old is Kevin now?\r
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document.write( "My work:
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document.write( "Kevin Now: X+5
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document.write( "Lisa Now: X
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document.write( "Kevin Then: 2x-4
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document.write( "Lisa Then: X-4
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document.write( "Equation: 2X+5=3X-8
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document.write( "Coming out with wrong answer of 13; Supposed to be 14. Thanks! \n" );
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Algebra.Com's Answer #8437 by venugopalramana(3286)![]() ![]() You can put this solution on YOUR website! I am having problems making this into an equation... \n" ); document.write( "Kevin is 5 years older than Lisa. Four years ago, Kevin was twice as old as Lisa was then. How old is Kevin now? \n" ); document.write( "My work: \n" ); document.write( "Kevin Now: X+5...GOOD \n" ); document.write( "Lisa Now: X....GOOD \n" ); document.write( "Kevin Then: 2x-4...NO..dont do this way..Kevin now is X+5..so 4 years back ,(as you did for Lisa)X+5-4=X+1 \n" ); document.write( "Lisa Then: X-4...GOOD...Twice as old Lisa then =2(X-4)=2X-8\r \n" ); document.write( "\n" ); document.write( "frame the equation now and solve as you did earlier \n" ); document.write( "2X-8=X+1 \n" ); document.write( "2X-X=1+8=9 \n" ); document.write( "X=9 \n" ); document.write( "Lisa is ( years and Kevin is X+5=9+5=14 yrs.now \n" ); document.write( " \n" ); document.write( " |