You are reading a single comment by @JWestland and its replies.
Click here to read the full conversation.
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
@JWestland
But a colleague initially said he would divide by 'a' first. I said no because you'd end up with (y/a=x+7/a)
That is correct but he is also right as:
y/a-7/a =x is the same as y-7/a = x
Because:
I said -7 from both side (y-7=ax) then divide both by 'a' (y-7/a=x)
The order of the divide operations/subtraction operations in this case does not matter. So do whatever is handiest :)
[and yes operation order CAN matter in maths stolen from https://en.wikipedia.org/wiki/Associative_property]
(5-3) -2 is not 5 - (3-2)
(4/2)/2 is not 4/(2/2)
Disclaimer I have studied maths to BsC level.