document.write( "Question 1047298: Which are examples of variables?\r
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\n" ); document.write( "\n" ); document.write( "+, –, x , ÷\r
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\n" ); document.write( "3, 6, 9, 12\r
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\n" ); document.write( "x, y, ac\r
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\n" ); document.write( "4 + 6 – 2 = 8\r
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Algebra.Com's Answer #662818 by Boreal(15235)\"\" \"About 
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x, y, and ac, for they can take any value.
\n" ); document.write( "The first choice are operators--add, subtract, etc.
\n" ); document.write( "The second choice are numbers that don't vary.
\n" ); document.write( "The fourth choice is an equation with nothing that can vary.
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