Given: 4x - 7 = 2x + 9 Prove: x = 9 What is the missing reason? 1. 4x - 7 = 2x + 9 ------------- 1. Given 2. 2x - 7 = 9 --------
----------- 2. ????? 3. 2x = 18 --------------------- 3. Addition Property of Equality 4. x = 9 ------------------------ 4. Division Property of Equality A) Multiplication property of equality B) Subtraction property of equality C) Transitive property of equality D) Substitution property of equality
1 answer:
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