document.write( "Question 1041144: brother 3 yrs ago was 2/3 sisters age.in one year he will be 3/4 her age. find his and her age. \n" ); document.write( "
Algebra.Com's Answer #656069 by stanbon(75887)\"\" \"About 
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brother 3 yrs ago was 2/3 sisters age.in one year he will be 3/4 her age. find his and her age.
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\n" ); document.write( "b-3 = (2/3)(s-3)
\n" ); document.write( "b+1 = (3/4))(s+1)
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\n" ); document.write( "3b-9 = 2s-6
\n" ); document.write( "4b+4 = 3s+3
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\n" ); document.write( "3b - 2s = 3
\n" ); document.write( "4b - 3s = -1
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\n" ); document.write( "12b - 8s = 12
\n" ); document.write( "12b - 9s = -3
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\n" ); document.write( "Subtract and solve for \"s\"::
\n" ); document.write( "s = 15 (sister's age now)
\n" ); document.write( "Solve for \"b\"::
\n" ); document.write( "3b - 2s = 3
\n" ); document.write( "3b - 30 = 3
\n" ); document.write( "b = 11 years (brother's age now)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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