document.write( "Question 936734: Mary is 4 times as old as Juan. The sum of their ages is 60. How old is juan \n" ); document.write( "
Algebra.Com's Answer #570216 by 428225(90)\"\" \"About 
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Let x be Juan's age
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\n" ); document.write( "4x+x=60
\n" ); document.write( "5x=60 (Divide by 5)
\n" ); document.write( "x=12
\n" ); document.write( "Therefore, Juan is 12 years old.
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