document.write( "Question 1165674: John's age is four times the age of Jake. If the difference between their age is 63, how old is John and how old is Jake? \n" ); document.write( "
Algebra.Com's Answer #790184 by ankor@dixie-net.com(22740)\"\" \"About 
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let x = John's present age
\n" ); document.write( "let y = Jake's
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\n" ); document.write( "Write an equation for each statement
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\n" ); document.write( "John's age is four times the age of Jake.
\n" ); document.write( "x = 4y
\n" ); document.write( " If the difference between their age is 63,
\n" ); document.write( "x - y = 63
\n" ); document.write( " how old is John and how old is Jake?
\n" ); document.write( "In the above equation, replace x with 4y (from the 1st statement)
\n" ); document.write( "4y - y = 63
\n" ); document.write( "3y = 63
\n" ); document.write( "y = 63/3
\n" ); document.write( "y = 21 is Jake's age
\n" ); document.write( "then
\n" ); document.write( "x = 4(21)
\n" ); document.write( "x = 84 yrs is John's age
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\n" ); document.write( "Check: 84 - 21 = 63 \n" ); document.write( "
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