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8

Set 5: Systems Of Equations (Intermediate)

Explanation

Answer: A

PROBLEM

Solve: 3x + 5y = 69, x + 2y = 26. Find x.

Solve: 3x + 5y = 69, x + 2y = 26. Find x.

A.

8

✓ Correct
B.

6

C.

10

D.

9

Detailed Explanation

Choice A is the best answer. Using elimination or substitution: x = 8

Why others are wrong:
B: 6 is incorrect because it does not satisfy the equation.
C: 10 is incorrect because it does not satisfy the equation.
D: 9 is incorrect because it does not satisfy the equation.
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