9

Set 12: Linear Equations

Explanation

Answer: C

The sum of two consecutive even integers is 26. What is the larger integer?

A.

12

B.

13

C.

14

✓ Correct
D.

10

Detailed Explanation

Choice C is correct. Choice D is the correct answer. 1. Define: x,x+2x, x+2 (even integers are 2 apart). 2. Equation: x+(x+2)=26x + (x + 2) = 26 3. Simplify: 2x+2=262x + 2 = 26 4. Subtract 2: 2x=242x = 24 5. Divide by 2: x=12x = 12 6. Larger: x+2=14x + 2 = 14 7. Verify: 12+14=2612+ 14 = 26 ✓ Choice D is incorrect because this is the smaller integer. Choice C is incorrect because 13 is odd. Choice C is incorrect because it results from an error in the solution process.

Key Steps:

The correct answer is 14

Why others are wrong:
A: Choice A is incorrect and may result from a calculation error.
B: Choice B is incorrect and may result from a calculation error.
D: Choice D is incorrect and may result from a calculation error.

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