document.write( "Question 744766: Hello please help me solve this.\r
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document.write( "Five years ago I was 5 times older than my son. In 8 years’ time
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document.write( "I will be 3 times older than my son. How old am I today?\r
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document.write( "I know it will be a simultaneous equation, but I'm struggling to understand the two equations. So far I've done x-5=5(y-5)
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document.write( " x+8=3(y+8)
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document.write( "Now I'm not sure what to do.
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document.write( "Thanks :) \n" );
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Algebra.Com's Answer #453536 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Five years ago I was 5 times older than my son. In 8 years’ time \n" ); document.write( "I will be 3 times older than my son. How old am I today?\r \n" ); document.write( "\n" ); document.write( "I know it will be a simultaneous equation, but I'm struggling to understand the two equations. So far I've done x-5=5(y-5) \n" ); document.write( " x+8=3(y+8) \n" ); document.write( "Now I'm not sure what to do. \n" ); document.write( "----------- \n" ); document.write( "You made the 2 eqns, that's where most people have problems. \n" ); document.write( "x-5=5(y-5) \n" ); document.write( "x+8=3(y+8) \n" ); document.write( "----- \n" ); document.write( "x - 5 = 5y - 25 \n" ); document.write( "x + 8 = 3y + 24 \n" ); document.write( "------------------ Subtract \n" ); document.write( "-13 = 2y - 49 \n" ); document.write( "2y = 36 \n" ); document.write( "y = 18 \n" ); document.write( "------- \n" ); document.write( "x = 70 \n" ); document.write( " |