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The Function

inverseNum()
inverseNum(number);

/*
  Inverse the number from positive to negative, or vice versa
*/

inverseNum(15);
// -15

inverseNum(-8);
// 8

Solution by - Need4Swede

How it works

function inverseNum(number) {
  
  // Multiply number by two, and subtract it by its initial value to get its inverse
  number = number - (number * 2);

  // Returns the value of number
  return number;

}

Alternatively, you can write it like this...

function inverseNum(number) {
  return(-number);
}

Try it yourself - Codewars Source

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