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Type: Multiple-Choice
Category: Linear Equations
Level: Grade 7
Standards: 7.EE.B.4, 7.EE.B.4a
Score: 2
Author: Losiea
Last Modified: 7 years ago

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Grade 7 Linear Equations CCSS: 7.EE.B.4, 7.EE.B.4a

Yoshi used this clue to find the secret number to open the brief case:
IF YOU DOUBLE THE SECRET NUMBER THEN ADD FOUR, THE ANSWER IS 20.

Use the formula 2x + 4 = 20 to find the secret number x.
  1. 12
  2. 10
  3. 8
  4. 6