2009 · Q90
If 3 x + 27 (3 -x ) = 12, then what is the value of x?
Elementary MathematicsAlgebra
- A1 only
- B2 only
- C1 or 2
- D0 or 1
Explanation
3ˣ + 27/3ˣ = 12 gives 3ˣ = 3 or 9, so x = 1 or 2.
If 3 x + 27 (3 -x ) = 12, then what is the value of x?
Explanation
3ˣ + 27/3ˣ = 12 gives 3ˣ = 3 or 9, so x = 1 or 2.