Find the answer to the equation

9x-7i >3 (3x-7u)

You cannot really find an exact value for the answer to this. Instead you can write the inequality in terms of the variables.

9x-7i >3 (3x-7u)

9x-7i > 9x - 21u

9x - 9x - 7i > - 21u

-7i > - 21u

We need to divide both sides with - 7 therefore we also need to flip the sign. Therefore, the answer is,

i<3u