document.write( "Question 131990: Jack is twice as old as Jill. In 2 years, Jack will be 4 times as old as Jill was 9 years ago. How old are they now? \n" ); document.write( "
Algebra.Com's Answer #96401 by TakeATuition.com(57)\"\" \"About 
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SOLUTION -
\n" ); document.write( "Let the present age of jack be x years
\n" ); document.write( " and the present age of jill be y years
\n" ); document.write( " According to the condition
\n" ); document.write( " x=2y ........(i)
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\n" ); document.write( " After 2 years jack will be (x+2)years
\n" ); document.write( " 9 years ago jill was (y-9)years
\n" ); document.write( " now according to the condition
\n" ); document.write( " (x+2)=4(y-9)
\n" ); document.write( " substituting the valu of x from equation (i) we have
\n" ); document.write( " 2y+2=4y-36
\n" ); document.write( " 2y-4y+2=4y-36-4y
\n" ); document.write( " -2y+2-2=-36-2
\n" ); document.write( " -2y=-38
\n" ); document.write( " \"-2y%2F-2\"=-38/-2}}}
\n" ); document.write( " y=19
\n" ); document.write( " substituting the value of y in equation (i) we have
\n" ); document.write( " x=2y
\n" ); document.write( " x=2*19
\n" ); document.write( " x=38
\n" ); document.write( " therefore
\n" ); document.write( " jack present age = 38
\n" ); document.write( " jill present age = 19\r
\n" ); document.write( "\n" ); document.write( " FOR MORE HELP VISIT: www.TakeATuition.com
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