8

So this is a rational equation. So to find the value of x you must do the act of cancelling or isolating.
The equation is like this am I right?

In the left side of the equation, times sign or no times sign, it is still the same.

Lets continue on to the equation:
First lets focus on the left side:
Turn the number 8 into a fraction, that would be 8/1.

Then, we need to factor the numbers:
What are the factors of 8?
8=2*2*2*2
What about factors of 1?
1=1
What about the factors of 12?
2*2*3
Factors of x?
x=x
Now let us cancel the same factors on the numerators to the factors of the denominators:


Cancel the two 2 pairs:

Now multiply the numerators and denominators:

Now we are done solving for the left side, now its turn for us to solve for the right side:
Again, make the whole number (9) into a fraction, that would be 9/1

Now its time for us to subtract these fractions:
(For me, the butterfly shortcut method is easier)
So the answer would be:

Now we are done with the both sides of the equation. This is the result:

But we're not done yet
Now we need to cross-multiply (the easiest method for me) meaning we need to multiply the numerator on the left side to the denominator on the right side and vice versa.



We're getting really close, one step and we are done! (End my typing suffering, PLEASEEE!!!)

Now its isolating time!
Here is a fill-in-the-blanks question:
3x-__=0
The answer would be 3x right? (Because 3x-3x=0)
Wait I accidentally pressed save please be patient for the answer
Ill just say the answer for you: the answer is: x=-351/23 (yes its a fraction)