Coefficient is-
Numerical factor of a term
One of the factors of a term
Variable factor of a term
Common factor of all the terms of an expression
Coefficient is the numerical factor of a term containing constant. Eg. In the term 5ab, 5 is the coefficient.
The numerical factor of a term is known as variable.
Factor out the coefficient of the variable term.
6n-24
5+2.5q
1.5y-6