Its just asking you to find a solution for x, in this case we have called it r.
So next step is to solve this
Do you know how?
Sketch the two graphs, and indicate on your graph the location of the root r of the equation . Use algebra and show that x=r can also solve the equation . Calculate r to 5 significant figurees using simple iteration.
Im stuck in the part in bold. I can rearrange into , but how do i show that x=r can solve the equation? Thanks.