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Type: Multiple-Choice
Category: Angles
Level: Grade 7
Standards: 7.G.B.5
Author: LBeth
Last Modified: 6 years ago

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Grade 7 Angles CCSS: 7.G.B.5

Based on the following information, including the fact that ∠ABC and ∠CBD are supplementary, which equation could be used to solve for x?

m∠DBC=x-10
m∠ABC=x+30
Supplementary Angle #2
  1. (x-10)-(x+30)=90
  2. (x-10)-(x+30)=180
  3. (x-10)+(x+30)=90
  4. (x-10)+(x+30)=180