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Mathematics 18 Online
OpenStudy (anonymous):

What is the value of x? Identify the missing justifications. , , and . a. __________ x + 7 + x + 3 = 100 b. Substitution Property 2x + 10 = 100 c. Simplify 2x = 90 d. __________ x = 45 e. Division Property of Equality a. Protractor Postulate; Subtraction Property of Equality b. Angle Addition Postulate; Subtraction Property of Equality Selected: c. Protractor Postulate; Addition Property of EqualityThis answer is incorrect. d. Angle Addition Postulate; Addition Property of Equality

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