x is non negative and x is not greater than 0
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a number plus 65
x+8 8+x
An expression is used in algebraic expressions meaning (890.098)+755,634 and a equality is a term meaning equal in both ways.
"J minus 3" and "the difference of j and 3.
Karen Smith works in algebra and algebraic geometry. Some of her main contributions involve finding purely algebraic ways to understand geometric objects, such as singularities in algebraic geometry. This is significant because, for example, even a computer can manipulate algebraic equations but it can not understand a drawing as well. I can answer more if you describe how much mathematics you have taken.