3
Answer: DSet 3: Linear Equations (Advanced)
Explanation
PROBLEM
Solve for x: 4(x - 1) = 72
Solve for x: 4(x - 1) = 72
A.
38
B.
20
C.
18
D.✓ Correct
19
Detailed Explanation
Choice D is the best answer. Solve step by step: x = 19
Why others are wrong:
A: 38 is incorrect because it does not satisfy the equation.
B: 20 is incorrect because it does not satisfy the equation.
C: 18 is incorrect because it does not satisfy the equation.