2x-12=34 is the equation.
x=23
Explanation: "Twelve decreased" means that the number 12 is taken away from a certain amount. This certain amount is "twice a number" which means double a value. This value is the number that we do not know, so I used 'x' as a variable placeholder for this number. This is how I got the equation.
I then solved the equation using algebra to find the value of x. You begin this process by adding 12 to 34, which equals 46. I then divided this number by 2, which equals 12. This is the most simplified the equation can get, so 12 is the value number we are looking for.
Because you do not provide an example, it is hard to tell. However, an inversely proportional equation would look something like this: y=k/x.
N - 2 x 8
n - 16
Therefore, n = 16
Hope this helps!! :))
