Answer:
The number is 3
Step-by-step explanation:
Let
x-----> the number
we know that
The algebraic representation of the phrase "twelve decreased by three times a number is equal to the same number"
is equal to
[tex](12-3x)=x[/tex]
solve for x
[tex]3x+x=12[/tex]
[tex]4x=12[/tex]
[tex]x=3[/tex]