document.write( "Question 296883: solve the following system of equations for the unknown variables. a-6=2b a+b=15 answer has to show(#,#). i got a=12 b=3 but i know its wrong
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Algebra.Com's Answer #213873 by JBarnum(2146)\"\" \"About 
You can put this solution on YOUR website!
this is substitution
\n" ); document.write( "\"a-6=2b\"
\n" ); document.write( "\"a%2Bb=15\" or \"a=%2815-b%29\"
\n" ); document.write( "____________
\n" ); document.write( "\"a-6=2b\"
\n" ); document.write( "\"%2815-b%29-6=2b\"
\n" ); document.write( "\"15-b%2Bb-6=2b%2Bb\"
\n" ); document.write( "\"9=3b\"
\n" ); document.write( "\"highlight%283=b%29\"
\n" ); document.write( "___________
\n" ); document.write( "\"a=%2815-b%29\"
\n" ); document.write( "\"a=%2815-3%29\"
\n" ); document.write( "\"highlight%28a=12%29\"
\n" ); document.write( "YOU were right good job.\r
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