2-6 Algebraic Proof

7
2-6 Algebraic Proof

Transcript of 2-6 Algebraic Proof

Page 1: 2-6 Algebraic Proof

2-6 Algebraic Proof

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Before we

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okay, enough…

Today we are going to practice formal proofs, which are written in two columns.

Statements Reasons

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• Today we will practice by solving algebra problems.

• All of the reasons we will use in the proofs are on page 94 in the yellow box.

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PROVE: If 3x – 19 = 5, then x = 8

Statements Reasons1. 3x – 19 = 5 1. Given

2. 3x – 19 + 19 = 5 + 19 2. Addition Property

3. 3x = 24 3. Substitution

4. 3x = 24 4. Division Property

3 3

5. x = 8 5. Substitution

#1 in the Proof is always what is given

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That’s It. Let’s try the classwork.


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2-6 Algebraic Proof p. 136

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