📅2026 FAFSA Deadline: June 30, 2026→
6

Set 2: Systems Of Equations (Advanced)

Explanation

Answer: C

PROBLEM

Solve: x + y = 12, x + 3y = 18. Find x.

Solve: x + y = 12, x + 3y = 18. Find x.

A.

8

B.

7

C.

9

✓ Correct
D.

11

Detailed Explanation

Choice C is the best answer. Using elimination or substitution: x = 9

Why others are wrong:
A: 8 is incorrect because it does not satisfy the equation.
B: 7 is incorrect because it does not satisfy the equation.
D: 11 is incorrect because it does not satisfy the equation.
← PreviousNext →