document.write( "Question 1106533: 5 years ago Sara's aunt was 4 times as old as Sara. If Sara's aunt is 42 years older than Sara, how old is Sara now? \n" ); document.write( "

Algebra.Com's Answer #721523 by greenestamps(13200) $\"\"$ $\"About$

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\n" ); document.write( "The difference between their ages is 42 years. In particular, when Sara's aunt was 4 times as old as Sara, the difference in their ages was 42 years. 42 years older and 4 times as old means their ages were 14 and 56.

\n" ); document.write( "Note: you might be able to figure that out using logical reasoning; if you want to see it algebraically, it might look like this:
\n" ); document.write( " $\"4x-x+=+42\"$ [the difference between the ages of Sara's aunt, who is 4 times as old as Sara, and Sara, is 42]
\n" ); document.write( " $\"3x+=+42\"$
\n" ); document.write( " $\"x+=+14\"$

\n" ); document.write( "So when Sara's aunt was 4 times as old as Sara, their ages were x=14 and 4x=56.

\n" ); document.write( "Since that was 5 years ago, Sara's age now is 14+5 = 19.
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