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Home > PC > Chapter 7 > Lesson 7.2.2 > Problem 7-56

7-56.

Express the solution set using inequality notation and sketch the set on a number line.

  1. Row of 9 pluses & row of 3 minuses, circle around first + and first minus, circle around rest of 8 pluses with northeast arrow = negative 2.

  1. Change the inequality sign if you divide or multiply both sides by a negative or switch the variable to the opposite side.