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Transcript
Algebra I Unit 2 Study Guide 1) Solving One-Step Equations Do the opposite 2) Solving Two-Step Equations Add/Subtract THEN Multiply/Divide Ex: x + 7 = 10 Ex: Ex: 5n = -40 Ex: 3) Solving Multi-Step Equations Ex: Ex: 2n + 7 = -21 n 4 7 8 4) Solving Literal Equations Get the identified letter by itself 3(m - 4) = 5(m + 2) 5p – 6 + p = 14 – 2p Ex: A = LW for L Ex: 4x + 4y = 20 for y Algebra I 5) JUSTIFY your answer Ex: 2n + 7 = -21 -7 = -7 2n = -28 n = -14 6) Write an equation and solve Ex: A state park charges admission of $6 per person plus $3 for parking. Jo paid $27 when her car entered the park. Write and solve an equation to find the number of people in Jo’s car. JUSTIFY: (substitute your solution in the equation and prove that it “works”) Ex: Costs for bowling at Blue Oaks bowling alley are $2.50 for shoes and $4.25 for each game bowled. Austin bowled 5 games. What was his total cost to bowl? 7) Steps for Solving Equations 1. 2. 3. 4. 5.