can someone help me with this problem ? x/9=8

Question

debbieg · Answer

To isolate the x, you need to "undo" the division on the left hand side. What operation "undoes" division?

anonymous · Answer

I am not sure, but it ask me several questions of how to do this.. i have to do a transaction

debbieg · Answer

If $\dfrac{a}{b}=c$, then   $b\cdot\dfrac{a}{b}=c\cdot b$, so $a=cb$

debbieg · Answer

(I'm not sure what you mean by "do a transaction".)

anonymous · Answer

transaction meaning, subtract multiply divide or add both sides

debbieg · Answer

I won't do your problem for you, but here's a similar example as a reference:

$\Large \dfrac{x}{3}=6$

$\Large 3\cdot\dfrac{x}{3}=6 \cdot3$

The threes on the left side cancel.... why? because what we REALLY have there is:
$\Large \dfrac{3}{3}\cdot x=6 \cdot3$ 

$\Large 1\cdot x=6 \cdot3$  so that means

$\Large  x=18$

debbieg · Answer

Yes, right - add, subtract, multiply, divide - those are called "operations" to me, but if you are in another part of the world it might be different. :)

debbieg · Answer

Just think about what the equation is SAYING: it isn't just letters and numbers, it has a meaning! :) For my example, the equation says:

x is the number that you divide by 3 in order to get 6.

What number is that? It's 18!

The algebra just gives us an algorithm for SOLVING it.... but if you think about the mathematical expression in a way that makes intuitive sense, it may help you understand the concepts better.

anonymous · Answer

lol im in another part of the world alright,, DEF to algebra lol

anonymous · Answer

ty anyways.. :)

debbieg · Answer

ok, yw.