In elementary algebra, another way of looking at division by zero is that division can always be checked using multiplication. Considering the example above, setting "x" = , if "x" equals ten divided by zero, then "x" times zero equals ten, but there is no "x" that, when multiplied by zero, gives ten (or any number other than zero). If instead of "x" = , "x" = , then every "x" satisfies the question 'what number "x", multiplied by zero, gives zero?'