It is the 2.
It is not an equation but an algebraic expression that can be simplified to: 12b-5a
4a + 7
5
12a
2 (or + 2)
a, whatever the value is, would be the constant.
It is the 5 in 5a+2
It is the 2.
It is not an equation but an algebraic expression that can be simplified to: 12b-5a
4a + 7
5
14a - 4a + 5a - 3a = 12a
It is:12a
12a
It is an expression that can be simplified to: 4a+2
2. Although, technically, the coefficient, 5, is also a constant.