
Home > AC > Chapter 3 > Lesson 3.1.2 > Problem 3-15
3-15.
Copy and simplify the following expressions by combining like terms.
Flip subtraction to addition.
Combine like terms.
Remember that you cannot combine
and .
See the hint in part (a).
Remember that
cannot be combined with or . See the hints in part (a).
See the hints in part (a) and part (c).