To find the GCF (Greatest Common Factor) of the expression \(18j + 27\), we need to identify the GCF of the coefficients of the terms.
- The coefficients are \(18\) and \(27\).
- The factors of \(18\) are \(1, 2, 3, 6, 9, 18\).
- The factors of \(27\) are \(1, 3, 9, 27\).
- The common factors of \(18\) and \(27\) are \(1, 3, 9\).
Thus, the greatest common factor is \(9\).
So, the GCF of \(18j + 27\) is:
9