document.write( "Question 613953: Gabriela is 2 times as old as Brandon. Thirty-five years ago, Gabriela was 7 times as old as Brandon.\r
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document.write( "How old is Brandon now? \n" );
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Algebra.Com's Answer #386334 by Maths68(1474)![]() ![]() You can put this solution on YOUR website! Let \n" ); document.write( "Present age of Gabriela = g \n" ); document.write( "Present age of Brandon = b\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Gabriela is 2 times as old as Brandon \n" ); document.write( "g=2b..........(1)\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Thirty-five years ago \n" ); document.write( "Gabriela was = g-35 \n" ); document.write( "and \n" ); document.write( "Brandon was = b-35\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Then\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Gabriela was 7 times as old as Brandon \n" ); document.write( "g-35=7(b-35) \n" ); document.write( "g-35=7b-245 \n" ); document.write( "g=7b-245+35 \n" ); document.write( "g=7b-210.............(2)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Put the value of g from (1) to (2) \n" ); document.write( "2b=7b=-210 \n" ); document.write( "2b-7b=-210 \n" ); document.write( "-5b=-210 \n" ); document.write( "Divide both sides of above equation by -5 \n" ); document.write( "-5b/-5=-210/-5 \n" ); document.write( "b=42 \n" ); document.write( "Put the value of b in (1) \n" ); document.write( "g=2b \n" ); document.write( "g=2*42 \n" ); document.write( "g=84\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Present age of Gabriela = g = 84 years old \n" ); document.write( "Present age of Brandon = b = 42 years old\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |