document.write( "Question 818572: [ Ben asks Amy how old she is and she says: \"if you subrtact 30 years from the triple of years I had last year, you will get half of my age now\", how old is Amy? ] \n" ); document.write( "

Algebra.Com's Answer #492645 by TimothyLamb(4379) $\"\"$ $\"About$

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3(a - 1) - 30 = (1/2)a
\n" ); document.write( "3a - 3 - 30 = (1/2)a
\n" ); document.write( "3a - 33 = (1/2)a
\n" ); document.write( "(6/2)a - (1/2)a = 33
\n" ); document.write( "(5/2)a = 33
\n" ); document.write( "a = (2/5)33
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\n" ); document.write( "answer:
\n" ); document.write( "Amy is 13.2 years old
\n" ); document.write( "that's 13 years, 2 months, and 12 days old
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