Translated into an equation this is:Originally Posted byjim1174

Multiply both sides of the equation by , and as

a "-" times a "-" is a "+" this gives:

Now expand the brackets on the Right Hand Side of the equation:

Add 45/4 to both sides of the equation:

.

Subtract from both sides:

.

Finlay multiply both sides by 4:

,

so

RonL