Question

Kaleb changed the subtraction in the expression to adding the additive inverse. What was his error?

6-17-6+17
Kaleb reversed the order of the integers.
Kaleb took the additive inverse of the second integer.
Kaleb took the additive inverse of the first integer.
Kaleb replaced subtraction with addition.​

Answer 1

Kaleb took the additive inverse of the first integer.

Explanation:

The subtraction: 6 - 17, can be changed to: 6 + (-17), adding the additive inverse (the minus sign of the subtraction changes to a plus sign, and 17 changes to its additive inverse, -17).

Kaleb transforms: 6 - 17, into: -6 + 17. He took the additive inverse of the first integer, instead of the second one.