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Home > A2C > Chapter 7 > Lesson 7.3.5 > Problem 7-225

7-225.
  1. Add or subtract and simplify each of the following expressions. Justify that each step of your process makes sense. Homework Help ✎

    1. 3 over x - 1 minus 2 over x - 2

Because the denominators are the same, simply add the numerators.

To get a common denominator:

When subtracting, distribute the negative to all terms in the numerator of the second fraction.