My problem is:

Solve for x: ax + b = bx - a

I found a similar problem in the book, and wondered if I'm on the right track or not.

I rewrote:

ax - bx = -a - b

x(a - b) = -a - b

x = -1 ?Code:x = -a – b ------- a – b

I guess because each letter is only equal to 1 my only possible answer is then 1? Is that how we get this answer? I'm only guessing...