The number can be 12 or 7, option(D).
What is an equation?
A mathematical statement consisting of an equal symbol between two algebraic expressions with the same value is known as an equation.
Let the number be = x
According to the question:
( x - 9)^2 = x - 3
x^2 - 18x + 81 = x - 3
x^2 - 19x + 84 = 0
x^2 - 12x - 7x + 84 = 0
(x - 12) - 7(x - 12) = 0
(x - 7) (x - 12) = 0
x = 7 , 12
Hence the number is either 12 or 7.
Learn more about equations on:
https://brainly.com/question/16450098
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