0 is neither positive or negitive. You cannot divide by 0. Its not infinity, like some believe, its simply not possible. 0 was created/discovered/invented many years after the rest of the number system. It is the 'additive identity' (university mathematics!)
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To indicate nothing is there.
They had a symbol for zero and understood its importance in mathematical calculations.
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Undefined: You cannot divide by zero
The property illustrated by 7x0=0 is the zero property of multiplication. This property states that any number multiplied by zero will always result in zero. In this case, when 7 is multiplied by 0, the product is 0. This property is a fundamental concept in mathematics and is essential for understanding the behavior of multiplication operations.