GBK Geometry. Jordan Johnson. Today’s plan. Greeting Review Asg #17 Practice Quiz Lesson: Homework / Questions Clean-up. Practice Quiz (~5 min). For each of these statements, name the postulate or theorem that justifies the statement: If x + 1 = 2 x , then 1 = x .
Given: 1 and 2 are complements of 3.
Prove: 1 = 2