7
Answer: ASet 3: Linear Equations (Intermediate)
Explanation
PROBLEM
Solve for x: 2x - 9 = 1x + 1
Solve for x: 2x - 9 = 1x + 1
A.✓ Correct
10
B.
11
C.
9
D.
8
Detailed Explanation
Choice A is the best answer. Solve step by step: x = 10
Why others are wrong:
B: 11 is incorrect because it does not satisfy the equation.
C: 9 is incorrect because it does not satisfy the equation.
D: 8 is incorrect because it does not satisfy the equation.