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30 August, 20:50

How to spimplify the expression 19z-19z =

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  1. 30 August, 23:14
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    Step-by-step explanation:

    19z-19z=0

    this is because z is always equivalent to itself, and therefore 19z is equivalent to 19z

    When you subtract two numbers that are equivalent, you will always get 0
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