document.write( "Question 1157358: The age of Juan is 3/4 of the age of Pedro. After 6 years, Juan's age will be 4/5 of Pedro's age. How old are each of them now? \n" ); document.write( "
Algebra.Com's Answer #780206 by VFBundy(438)\"\" \"About 
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Pedro's age = p
\n" ); document.write( "Juan's age = 3p/4
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\n" ); document.write( "3p/4 + 6 = 4(p + 6)/5
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\n" ); document.write( "3p/4 + 6 = (4p + 24)/5
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\n" ); document.write( "5(3p/4 + 6) = 4p + 24
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\n" ); document.write( "15p/4 + 30 = 4p + 24
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\n" ); document.write( "4(15p/4 + 30) = 4(4p + 24)
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\n" ); document.write( "15p + 120 = 16p + 96
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\n" ); document.write( "-p = -24
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\n" ); document.write( "p = 24
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\n" ); document.write( "Pedro's age = p = 24
\n" ); document.write( "Juan's age = 3p/4 = 3(24)/4 = 72/4 = 18
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