document.write( "Question 51059: A fir tree is 5 times as old as a pine tree. Seven years from now , the sum of their ages will be 32. How old is the fir tree now? \n" ); document.write( "
Algebra.Com's Answer #34056 by darq(90)\"\" \"About 
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f=5p
\n" ); document.write( "(f+7)+(p+7)=32\r
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\n" ); document.write( "\n" ); document.write( "substitute f with 5p in the second equation because according to the first equation they are same.\r
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\n" ); document.write( "\n" ); document.write( "5p+7+p+7=32
\n" ); document.write( "6p+14=32
\n" ); document.write( "6p=18
\n" ); document.write( "pine=3 years old\r
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\n" ); document.write( "\n" ); document.write( "fir is five times older so it is 3*5=15 years old.
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