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X+ 2 1 ​ =x− 2 1 ​ true or false
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X+ 2 1 ​ =x− 2 1 ​ true or false

User Stefansundin
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Answer:

let's say in this situation x =0 if I were to add 21 to 0 the Answer is +21 but if I were to subtract 21 from zero I would get -21 and -21≠+21

User Ha Bom
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