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## Topic review (newest first)

MathsIsFun
2005-04-20 08:48:15

Correct, oh furry one.

In maths everything has a special name. "Variable" is the name given to the letters like "x","y","u" and so on.

Zach
2005-04-20 06:39:52

Both X and Y are variables. That's confused you now.

MathsIsFun
2005-04-19 23:58:26

Let's start at the beginning.

You know that 7 times 6 is 42, right ?

So, if I said 7 times "y" is 42, could you tell me what "y" is? (In algebra the letter "x", "y", etc just means "don't know this yet")

It would be written neatly like this:

7y=42

And you solve it like this:

7y=42
7y / 7 = 42 / 7  (you can divide by anything, so long as you do it to both sides of the "=")
y=42 / 7           (7/7 = 1 of course)
y=6                  (42/7 = 6)

Is this too easy?

reni
2005-04-19 21:49:18

i dont understand algebra

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