document.write( "Question 367295: Molly is 4 years younger than Heidi. In 3 years, Heidi will be twice as old as Molly. How old are they now? \n" ); document.write( "
Algebra.Com's Answer #261871 by checkley77(12844)\"\" \"About 
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MOLLY'S AGE NOW X-4
\n" ); document.write( "HEIDI'S AGE NOW=X
\n" ); document.write( "IN 3 YEARS MOLLY WILL BE X-4+3 OR X-1
\n" ); document.write( "IN 3 YEARS HEIDI WILL BE X+3
\n" ); document.write( "2(X-1)=(X+3)
\n" ); document.write( "2X-2=X+3
\n" ); document.write( "2X-X=3+2
\n" ); document.write( "X=5 YEARS OLD FOR HEIDI NOW.
\n" ); document.write( "5-3=2 YEARS OLD FOR MOLLY NOW.
\n" ); document.write( "PROOF:
\n" ); document.write( "2(5-1)=(5+3)
\n" ); document.write( "2*4=8
\n" ); document.write( "8=8
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