document.write( "Question 936474: Having some trouble trying to figure out this problem. Tom is 8 years older than his sister. In 4 years he will be twice his sister's age. How old is tom?
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Algebra.Com's Answer #569929 by stanbon(75887)\"\" \"About 
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Tom is 8 years older than his sister. In 4 years he will be twice his sister's age. How old is tom?
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\n" ); document.write( "Equations:
\n" ); document.write( "t = s + 8
\n" ); document.write( "t+4 = 2(s+4)
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\n" ); document.write( "Substitute for \"t\" and solve for \"s\":
\n" ); document.write( "s+8+4 = 2s+8
\n" ); document.write( "s = 4 (Sister's age now)
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\n" ); document.write( "Ans: t = s+8 = 12 (Tom's age now)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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