document.write( "Question 334275: In 2 years, David will be twice as old as he was 5 years ago. How old is he now? \n" ); document.write( "
Algebra.Com's Answer #239500 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
x+2=2(x-5)
\n" ); document.write( "x+2=2x-10
\n" ); document.write( "x-2x=-10-2
\n" ); document.write( "-x=-12
\n" ); document.write( "x=12 ans.
\n" ); document.write( "Proof:
\n" ); document.write( "12+2=2(12-5)
\n" ); document.write( "14=2*7
\n" ); document.write( "14=14
\n" ); document.write( "
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