Sagot :
Answer:
wrong
Step-by-step explanation:
the student added 4x with 3 instead of multiplying
Answer: Step 2, and correct would be a) Step 2, 12x − 16 = 16 + 4x
Step-by-step explanation:
Step 1. 4(3x − 4) = 8 + 4x + 8
Step 2. 7x − 8 = 16 + 4x
Step 3. 7x − 4x = 16 + 8
Step 4. 3x = 24
Step 5. x = 8
The student first make an error in Step 2, it should be 4 multiply the number inside the parentheses, which would be 4(3x) + 4(-4) = 8 + 4x + 8. We get 12x - 16 = 16 + 4x, which is choice a.