document.write( "Question 998814: Jack is 6 years older than betty in 3 years time jack will be twice as old as betty.how old is jack now? \n" ); document.write( "
Algebra.Com's Answer #616594 by Cromlix(4381)\"\" \"About 
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Hi there,
\n" ); document.write( "Jack is 6 years older than Betty.
\n" ); document.write( "J = 6 + B.........Equation 1
\n" ); document.write( "In 3 years time Jack will be
\n" ); document.write( "twice as old as Betty.
\n" ); document.write( "J + 3 = 2(B + 3)......Equation 2
\n" ); document.write( "Replace the J in Equation 2 with
\n" ); document.write( "6 + B from equation 1
\n" ); document.write( "6 + B + 3 = 2(B + 3)
\n" ); document.write( "9 + B = 2B + 6
\n" ); document.write( "Collect like terms:
\n" ); document.write( "B - 2B = 6 - 9
\n" ); document.write( "-B = - 3
\n" ); document.write( "B = 3
\n" ); document.write( "Betty is currently 3 years old.
\n" ); document.write( "Jack is currently 9 years old.
\n" ); document.write( "Hope this helps :-) \n" ); document.write( "
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