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Home > A2C > Chapter 11 > Lesson 11.3.1 > Problem 11-135

11-135.
  1. Solve and check each equation. Homework Help ✎

Look inside.
2x + 1 = (x + 1) or
2x + 1 = −(x + 1)

x = 0

Remember to check your answer.

See part (a).

x = 1