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GEO Practice 1 Unit 1
供稿人: Garcia
Part A. Set up the equation. 
Part B. The value of n is 
Analyze the figure below and solve for n. 
5n - 12 = 90
  5n - 12 = 133
5n - 12 = 43
5n - 12 + 90 + 43 = 180
Part A. Set up the equation. 
Part B. The value of n is 
Analyze the figure below and solve for n. 
6n - 5 = 115
115 + 6n - 5 = 180
6n - 5 = 25
6n - 5 + 90 + 25 = 180
Part A. Set up the equation. 
Part B. The value of n is 
Analyze the figure below and solve for n. 
2n + 15 = 37 
2n + 15 + 37= 180
2n + 15 = 127
2n + 15 + 37 + 90 = 180
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