Priscilla has a number riddle for her friend she wants them to guess what number she is thinking of she tells them that her number can be represented by the X in the equation 3x - 10 equals 26 her friends get 6,12,13 36 using substitution which gas was the correct number

Using the given equation 3x - 10 = 26, let's substitute the values provided by Priscilla's friends to see which one results in the correct equation.

If we substitute x = 6, we have 3(6) - 10 = 18 - 10 = 8, which is not equal to 26.
If we substitute x = 12, we have 3(12) - 10 = 36 - 10 = 26, which is equal to 26.
If we substitute x = 13, we have 3(13) - 10 = 39 - 10 = 29, which is not equal to 26.
If we substitute x = 36, we have 3(36) - 10 = 108 - 10 = 98, which is not equal to 26.

Therefore, the correct number, as represented by x, is 12.