document.write( "Question 805088: betty is twice as old as cathy was two years ago. the difference of their present age is 7. find the age of betty now. \n" ); document.write( "
Algebra.Com's Answer #485673 by tommyt3rd(5050)\"\" \"About 
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1) B=2(C-2)=2C-4
\n" ); document.write( "2) B-C=7\r
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\n" ); document.write( "\n" ); document.write( "B=C+7\r
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\n" ); document.write( "\n" ); document.write( "so that\r
\n" ); document.write( "\n" ); document.write( "C+7=2C-4
\n" ); document.write( "7+4=2C-C
\n" ); document.write( "C=11\r
\n" ); document.write( "\n" ); document.write( "thus\r
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\n" ); document.write( "\n" ); document.write( "B=18
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