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Home > MC2 > Chapter 7 > Lesson 7.1.3 > Problem 7-30

7-30.
  1. Solve the following equations using any method. Show your work and check your solution. Homework Help ✎

    1. 5x + 20 = 3x + 4

    2. 7x – 4 = 3x + 8

    3. 2x + 6 = x – 9

Once you have found an answer, substitute it for x in the original equation to check if you are correct.

x = −8

x = −15