document.write( "Question 810284: jake is 5 years older than his sister three years ago jake was twice his sisters age how old is jakes siter now? \n" ); document.write( "
Algebra.Com's Answer #488032 by stanbon(75887)\"\" \"About 
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jake is 5 years older than his sister
\n" ); document.write( "three years ago jake was twice his sisters age
\n" ); document.write( "how old is jakes siter now?
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\n" ); document.write( "Equations:
\n" ); document.write( "j = s + 5
\n" ); document.write( "j-5 = 2(s-5)
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\n" ); document.write( "Substitute for \"j\" and solve for \"s\"::
\n" ); document.write( "s+5-5 = 2s-10
\n" ); document.write( "s = 2s-10
\n" ); document.write( "s = 10 (sister's age now)
\n" ); document.write( "----
\n" ); document.write( "Solve for \"j\":
\n" ); document.write( "j = s+5
\n" ); document.write( "j = 15 (jake's age now)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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