# Mathematical Solution in Inequality

1. ### Quarlep

171
Hi I have a problem about Inequality.

Let's suppose we have a inequality like this:

$$axb≥d$$ and $$cxd≥d$$ so I want to find connection between a and d its possible to do something like that
Thanks

### Staff: Mentor

Just to be clear, is 'x' a variable or are you using it to indicate multiplication?

1,455
Is the second inequality meant to involve d on each side?

4. ### Quarlep

171
İts a multiplication

5. ### Quarlep

171
I am sorry.Here the right one

$$axb≥d$$
and $$cxf≥d$$

6. ### mathman

6,437
With no further information, there isn't much you can say about the relationship between a and d. Furthermore, the second inequality is of no help.

Questions: sign of a, sign of d, sign and size of b.

Last edited: Jan 20, 2014

### Staff: Mentor

Because x is used so often in algebra, trig and higher mathematics disciplines, it's bad practice to use 'x' to indicate multiplication.

It's clearer to write your inequalities like this:

ab ≥ d
cf ≥ d

8. ### pwsnafu

903
The times symbol is not ##x##, it is ##\times##. Use "\times" to get LaTeX to write it.