document.write( "Question 636356: the sum of julies age and her fathers age is 58. if julies father is 10 years younger than triple Julie's age, find their age. \n" ); document.write( "
Algebra.Com's Answer #400940 by Maths68(1474)\"\" \"About 
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Let
\n" ); document.write( "Present age of Julies = j years old
\n" ); document.write( "Present age of Father = f years old\r
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\n" ); document.write( "\n" ); document.write( "the sum of julies age and her fathers age is 58
\n" ); document.write( "j+f=58
\n" ); document.write( "j=58-f.............(1)
\n" ); document.write( "julies father is 10 years younger than triple Julie's age
\n" ); document.write( "3j=f-10............(2)
\n" ); document.write( "Put the value of j from (1) to (2)
\n" ); document.write( "3j=f-10
\n" ); document.write( "3(58-f)=f-10
\n" ); document.write( "174-3f=f-10
\n" ); document.write( "-3f-f=-10-174
\n" ); document.write( "-4f=-164
\n" ); document.write( "-4f/-4=-164/-4
\n" ); document.write( "f=41
\n" ); document.write( "Put the value of f in (1)
\n" ); document.write( "j=58-f.............(1)
\n" ); document.write( "j=58-41
\n" ); document.write( "j=17\r
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\n" ); document.write( "\n" ); document.write( "Present age of Julies = j = 17 years old
\n" ); document.write( "Present age of Father = f = 41 years old
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