document.write( "Question 1059743: John is six times as old as his little sister Anna. In twelve years,John will be twice as old as Anna. How old is John now ? Okay this is just an example of what I'm having to do and it shows the following.
\n" ); document.write( "6x + 12=2(x+12)
\n" ); document.write( "6x+12=2x+24
\n" ); document.write( "4x=12
\n" ); document.write( "X=3
\n" ); document.write( "So the question is I'm not understanding how they came about getting 4x=12 or even 6x+12=2x+24?
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Algebra.Com's Answer #674808 by ikleyn(52788)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "    - HOW TO solve a linear equation \r
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