document.write( "Question 294159: 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 #212199 by Deina(147) $\"\"$ $\"About$

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m = h - 4\r
\n" ); document.write( "\n" ); document.write( "h + 3 = 2(m + 3)
\n" ); document.write( "Substitute (h - 4) for m
\n" ); document.write( " $\"+h+%2B+3+=+cross%282%28h+-+4+%2B+3%29%29+=+2h+-+2+\"$

\n" ); document.write( "Subtract 3 from each side:
\n" ); document.write( " $\"+h+%2B+cross%283+-+3%29+=+2h+-+cross%282+-+3%295+\"$ \r
\n" ); document.write( "\n" ); document.write( "2h - 5 = h = 5
\n" ); document.write( "5 - 4 = 1
\n" ); document.write( "m = 1

\n" ); document.write( "Heidi is 5
\n" ); document.write( "Molly is 1
\n" ); document.write( "& bob's your uncle!
\n" ); document.write( " \n" ); document.write( "

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