document.write( "Question 663375: 5x+3+x=21
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Algebra.Com's Answer #412744 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
\"5x%2B3%2Bx=21\"\r
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\n" ); document.write( "\n" ); document.write( "\"6x%2B3=21\"\r
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\n" ); document.write( "\n" ); document.write( "\"6x=21-3\"\r
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\n" ); document.write( "\n" ); document.write( "\"6x=18\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=%2818%29%2F%286%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=3\"
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