Final answer:
The equivalent expression to -2 + 4/5h -1 is -3 + 4/5h, which is achieved by combining like terms, here being the constant terms -2 and -1.
Step-by-step explanation:
The student is asking for an equivalent expression to -2 + 4/5h -1. When simplifying such expressions, we combine like terms and perform any arithmetic operations as necessary. Here, since -2 and -1 are like terms (both are constants with no variable), we can add them together.
-2 + 4/5h -1 simplifies to (-2 - 1) + 4/5h, which becomes -3 + 4/5h. This is the equivalent expression that the student is seeking.
This simplification is similar to the subtraction of scalars, such as 5 - 2 = 5 + (-2), where we change the sign of the number being subtracted and then perform addition. In this case, we are combining the constants -2 and -1 to get -3.