document.write( "Question 166257: Please held me solve this problem:\r
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document.write( "Mark is 11 years older that his sister. In 8 years he will be twice as old as she will be then. How old are they now?
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Algebra.Com's Answer #122530 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! M=S+11 \n" ); document.write( "M+8=2(S+8) \n" ); document.write( "(S+11)+8=2(S+8) \n" ); document.write( "S+19=2S+16 \n" ); document.write( "S-2S=16-19 \n" ); document.write( "-S=-3 \n" ); document.write( "S=3 YEARS OLD FOR THE SISTER NOW. \n" ); document.write( "M=3+11=14 YEARS OLD FOR MARK NOW. \n" ); document.write( "PROOF: \n" ); document.write( "14+8=2(3+8) \n" ); document.write( "22=2*11 \n" ); document.write( "22=22\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |