document.write( "Question 259048: what is the difference between a variable, a variable expression, and an equation? \n" ); document.write( "
Algebra.Com's Answer #190734 by richwmiller(17219)\"\" \"About 
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An equation equates (with an equal sign) two things whether they be variables , expressions or constants.
\n" ); document.write( "A variable is an unknown quantity denoted by a letter.
\n" ); document.write( "A variable expression is a variable and/or constant with a mathematical operation such as addition or division.
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