Hi,

I have two equations as follows:

L is proportional to (M^6/R^7)

which I have to combine with:

L is proportional to M^5.5 R^-0.5

I need to end up with a relationship which has L proportional to R so that M is eliminated.

My current attempt has gone along the following lines:

Rearrange 2nd Equation so that M is subject and then substitute L back into the equation to have:

M is proportional to ((M^6/R^7)/R^-0.5) <<<<this would be taking to the root 5.5 as well but wasn't sure how to write this down to make it clear on the screen.

My main problem is eliminating M from the equation. Any help appreciated!