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21 November, 11:37

Given: 2x + 11 = 15 Prove: x = 2 Statements Reason 1. 2x + 11 = 15 1. Given 2. 2x = 4 2. 3. x = 2 3. Division Property of Equalit

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  1. 21 November, 15:11
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    2x + 11 = 15 ⇒ Given

    2x + 11 - 11 = 15 - 11 ⇒ Subtracting 11 from both sides, this is the Property of Equality

    2x = 4 ⇒ Carried on from the previous line of working out

    2x : 2 = 4 : 2 ⇒ Divide both sides by 2, this is the property of division equality

    x = 2 ⇒ Proved as required
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