document.write( "Question 21887: what is the missing number? 6,781+ 2,124=2,124+ \n" ); document.write( "

Algebra.Com's Answer #10535 by Alwayscheerful(414) $\"\"$ $\"About$

You can put this solution on YOUR website!
For the missing number, I would use the variable X.
\n" ); document.write( "So, your equation is this:
\n" ); document.write( " $\"6781%2B2124=2124%2Bx\"$
\n" ); document.write( "Then simplify to make the equation look easier
\n" ); document.write( " $\"addition_cartoon%286781%2C2124%29\"$
\n" ); document.write( "Then you get
\n" ); document.write( " $\"8905=2124%2Bx\"$
\n" ); document.write( "How do you find X now?
\n" ); document.write( "Isolate the X by subtracting 2124 from both sides
\n" ); document.write( " $\"subtraction_cartoon%288905%2C2124%29\"$
\n" ); document.write( "So X = $\"6781\"$
\n" ); document.write( "Hope this helps! \n" ); document.write( "

\n" );