# 1. What is the value of r in the equation 4r – 8 = 5r + 12? (4 points) –20 –1 1 20 2. Which of these is a simplified form of the equation 8y + 4 = 6 + 2y + 1y? (4 points) 5y = 2 5y = 10 11y = 2 11y = 10 3. What is the value of n in the equation 3n + 2(n + 2) = 9n + 12? (4 points) –4 –2 2 4 4. How many solutions can be found for the equation –4x – 11 = 2(x – 3x) + 13? (4 points) None One Two Infinitely many 5. The work of a student trying to solve the equation 2(2x – 3) = 6 + 2x + 4 is shown below: Step 1: 2(2x – 3) = 6 + 2x + 4 Step 2: 4x – 3 = 10 + 2x Step 3: 4x – 2x = 10 + 3 Step 4: 2x = 13 Step 5: x = 6.5 In which step did the student first make an error and what is the correct step? (4 points) Step 2: 4x – 6 = 10 + 2x Step 2: 4x – 3 = 2 + 2x Step 3: 4x + 2x = 10 + 3 Step 3: 4x – 2x = 10 - 3

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