document.write( "Question 773299: if lisa's age six years ago is subtracted from her age six years from now, the result will be half a year more than one half her present age. how old is lisa now? \n" ); document.write( "
Algebra.Com's Answer #471541 by ankor@dixie-net.com(22740)\"\" \"About 
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if Lisa's age six years ago is subtracted from her age six years from now,
\n" ); document.write( "the result will be half a year more than one half her present age.
\n" ); document.write( " how old is Lisa now?
\n" ); document.write( ":
\n" ); document.write( "Let x = L's present age
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\n" ); document.write( "Write an equation for what it says.
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\n" ); document.write( "(x+6) - (x-6) = .5x + .5
\n" ); document.write( "x + 6 -x + 6 = .5x + .5
\n" ); document.write( "12 = .5x + .5
\n" ); document.write( "12 - .5 = .5x
\n" ); document.write( "11.5 = .5x
\n" ); document.write( "mult both sides by 2
\n" ); document.write( "23 = x; Lisa is 23
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