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Ah thank you, this definitely helps to clear it up.
I'm studying maths again after nearly a 7 year break from it and while I'm doing well (better than I ever have in school, matter of fact) there are still a couple of things that I haven't been completely explained; namely, the rules when multiplying/dividing in equations. While I know what the rules are, I still haven't been explained WHY it differs from adding and subtracting. For instance:
Say I have the equation 4x+(3/4)-1=5+20
If I want to get rid of the fraction (3/4) I have to multiply 4 by the entire equation on both sides:
4(4x+(3/4)-1)=(5+20)4
The same goes for division. But.. when adding or subtracting, instead of it being, say when adding 1 to both sides:
4x+(3/4+1)-(1+1)=(5+1)+(20+1) it's simply 4x+(3/4)-1+1=5+20+1
Why is that?
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