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Section 2-2

Solving Two-Step Equations



Objective 2

Using Deductive Reasoning


To justify each step as you solve an equation, use deductive reasoning and the properties of equality.

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For help with deductive reasoning see p. 56.

Example 4 Using Deductive Reasoning

Solve 1 = k/12 + 5. Justify each step.

solution to 1 = k/12 + 5
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Remember that an expression like 8 – 3y can be rewritten as 8 + (–3 y) using the definition of subtraction.

Example 5 Using Deductive Reasoning

Solve 8 – 3y = 14. Justify each step.

solution to 8 - 3y = 14
check mark Check Understanding

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Algebra 1 iText

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Chapter 2
Solving Equations

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