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Even when using the cross multiplication method, you still need to find the common denominator of one side of the equation, as opposed to both sides, am I correct?
akukak 1 month ago
Yes. Basically combine fractions so you only have one fraction on either side, then cross multiply.
chychochycho 1 month ago
this is a great video, thanks. it would be really good if you would show us sometime what the terms in equations CAN represent, where they come from. and how we can take a problem description and turn it into an equation. not only that, but WHY you would do that in the first place and how you can then use the equation you have...
i mean, why is one equation equal to another? it is some relationship? but what kind of relationship?
just some thoughts from someone who finds math v.difficult :-) ty
MustNotRead 2 years ago
sorry for my porely worded coomment, but i guess i am basically saying that i would like you to just describe the idea of equations more. what are the terms and factors saying (in English) in relation to some real world tangible idea.
MustNotRead 2 years ago
helle MustNotRead,
Your wording was fine. What you are asking is related to functions. I will be getting into this in detail next year, but since you brought it up, i'll try and introduce a couple of equations and talk about what the terms (variable) may represent in the next couple of months. I can't promise that i will get to it but i will try.
What i'm doing right now is building up to what you are asking me to do, which is talk about how we use the language of mathematics.
chychochycho 2 years ago