Can somebody help me and explain to me what this means?

"Practice representing two quantities using only one variable."

How do I do this?

Question

Can somebody help me and explain to me what this means?

"Practice representing two quantities using only one variable."

How do I do this?

brainzonly · Answer

a variable is like x, y or z. Quanity is how much is multiplied, etc by it.

starfireandrobin · Answer

No, I know this. I just don't know how to "represent two quantities using one variable".

starfireandrobin · Answer

@brainzonly

triciaal · Answer

example 2 quantities  one is 7 more than the other
x, (x + 7)

triciaal · Answer

example the length is twice the width 
L = 2w   so 2w, w

mathmale · Answer

I agree with triciaal here.  Supposing that one variable is represented by x, and that the second variable is 7 more than the first.  Then the 2nd variable is x+7.  Right.