document.write( "Question 748481: in 10 years, frederick will be thrice as old as he was 8 years ago. How old is he know? \n" ); document.write( "

Algebra.Com's Answer #455487 by nilan(17) $\"\"$ $\"About$

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let the frederic age is x now
\n" ); document.write( "so 8 years ago his age was x-8
\n" ); document.write( "in 10 years his age will be x+10\r
\n" ); document.write( "\n" ); document.write( "in 10 years, frederick will be thrice as old as he was 8 years ago
\n" ); document.write( "which means
\n" ); document.write( " $\"x%2B10+=+3%28x-8%29\"$
\n" ); document.write( " $\"x%2B10+=+3x-24\"$
\n" ); document.write( " $\"10%2B24+=+3x-x\"$
\n" ); document.write( " $\"34+=+2x\"$
\n" ); document.write( " $\"x=17\"$ \r
\n" ); document.write( "\n" ); document.write( "so he is 17 years old now \n" ); document.write( "

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