Question

How do you solve \r+3=r-3 by the way / is a radical sign

Answer 1

Subtract three from both sides to get:


`√(r) =r-6`

Square both sides to get:


`r^2-12r+36=r`

Subtract r to get:

`r^2-13r+36=0`

Factor to get:
(r-9)(r-4)=0

The solutions to this equation are 9 and 4.