Question

11) The set which does not contains additive identify element is
12) A number which do not have multiplicative inverse is...................
13) a+(b+c)=(a+b)+c is called .............. property under addition
14) If x+2=2x+1 then x= .........
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Answer 1

Answer:

1.natural number

2.whole number

/integers

3.associative

4.1

Step-by-step explanation:

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