7

Set 3: Linear Equations (Intermediate)

Explanation

Answer: A

PROBLEM

Solve for x: 2x - 9 = 1x + 1

Solve for x: 2x - 9 = 1x + 1

A.

10

✓ Correct
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.