document.write( "Question 23829: Solve for x\r
\n" ); document.write( "\n" ); document.write( "2x-1=20-x
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Algebra.Com's Answer #12605 by elima(1433)\"\" \"About 
You can put this solution on YOUR website!
2x-1=20-x
\n" ); document.write( "First add 1 to both sides;
\n" ); document.write( "2x-1+1=20-x+1
\n" ); document.write( "2x=21-x
\n" ); document.write( "Now add x to both sides;
\n" ); document.write( "2x+x=21-x+x
\n" ); document.write( "3x=21
\n" ); document.write( "Now divide each side by 3;
\n" ); document.write( "\"3x%2F3\"=\"21%2F3\"
\n" ); document.write( "x=7
\n" ); document.write( "Hope you understand
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