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Given: ZAB, mzA 55, and m2B-5x+10 Prove:x=9 Statement: 1.ZAZB 2.mzA=mzB 3.mzA=55 4.55 m2B 5.mzB=5x+10 6.55=5x+10 7.45 5x 8.x=9 1. Given Reason: 2. Congruency 3.

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Given: ZAB, mzA 55, and m2B-5x+10 Prove:x=9 Statement: 1.ZAZB 2.mzA=mzB 3.mzA=55 4.55 m2B 5.mzB=5x+10 6.55=5x+10 7.45 5x 8.x=9 1. Given Reason: 2. Congruency 3. Given 4. Substitution 5. Given 6. Substitution 7.[?] 8. Division Property of Equality Select the reason that best supports Statement 7 in the given proof. A. Distributive Property B. Subtraction Property of Equality C. Substitution D. Division Property of Equality

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