What does 10x + 9 - X = 12 equal?

If you are trying to find the value of x here it is.

x=1/3

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

Step 2: Subtract 9 from both sides.

Step 3: Divide both sides by 9.

And you end up getting 1/3.

Hope this helped :)

x = 1/3

Step-by-step explanation:

First, you have to combine like terms so 10x -x is 9x. Now we have a new equation.

9x + 9 = 12

We're going to have to solve for the digits without variables like so,

9x + 9 = 12

    -9    -9  

9x = 3

All we've got left here is to isolate the variable and to do that you divide both sides by 9.

x = 3/9 and 3/9 is the same as 1/3

Hope this helps and have a great day!

i believe the answer is the polygon, heptagon.