What is my first move please?
- Remove brackets on the LHS
- Collect terms in on one side only; everything else on the other side
- Take out a common factor of (by writing outside a bracket with the other bits inside)
Divide both sides by the resulting bracket to make the subject.
Can you complete it now?
Thank you for your answer. I would still be pondering without your prompts as I have not been taught to factorise in the middle of changing the subject of a formula. So here is my attempt.
y(1 - x) = 5 + x
y - xy = 5 + x
y -5 = x + xy
y - 5 = x(1 + y)
It's great to be learning, thank you all ~ Marilyn