[SOLVED] Expressing the inverse(?) of a number in an equation?

[juz_ad]

How do I express the inverse of a number in an equation and what is the name for this operation?

e.g. ((a + b)*x)

I know the value of x and if it is a positive number I want it to be entered as a negative number and if it is a negative number I want it to be entered as a positive number?

Thanks.

 

[keith1200rs]

You seem to be talking about the negative of a number, not the inverse. Your equation would simply be ((a + b)*(-x)) but maybe I am missing something?

Keith.

 

[juz_ad]

To be honest - I'm not sure of the terminology, my apologies - but by way of example...

If x = -6 then my equation would be ((a + b)*(6))

If x = +6 then my equation would be ((a + b)*(-6))

In that case - would I write the general equation as ((a + b)*(-x)) ...where (-x) is the negative of x?

Thanks.

 

[keith1200rs]

That is my understanding of the problem and solution, yes.

Keith