Warm-Up Write the verbal phrase as an algebraic expression or equation. Solve if applicable. Seven squared increased by a number The difference of four.

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Warm-Up Write the verbal phrase as an algebraic expression or equation. Solve if applicable. Seven squared increased by a number The difference of four times a number and seven is nine. Twenty-five is the quotient of a number and 3.5.

What steps are used in solving linear equations? GSE Algebra I UNIT QUESTION: Why is it important to understand the relationship between quantities? Standard: MCC9-12.N.Q.1-3, MCC9-12.A.SSE.1, MCC9-12.A.CED.1-4 Today’s Question: What steps are used in solving linear equations? Standard: MCC9-12.A.CED.1

Quick Review 1) Substitution 2) Evaluate X = 3, y = 2 2 + 3(8-5)2 45 – 1 x2 + y 3) Simplify - 5 – 4(x – 8) + 3

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Equation Practice 2x + 6 = 12 3(x – 5) = 21 8x – 2(x + 7) = 16

Solving Inequalities Solve and graph the solution set of: 2x - 6 < 2 2x - 6 < 2 2x < 8 Add 6 to both sides. Divide both sides by 2. x < 4 Open circle at 4, since x can not equal 4, and an arrow to the left, because we want values less than 4.

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