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8

Set 2: Systems Of Equations (Beginner)

Explanation

Answer: C

PROBLEM

Solve: 3x + 5y = 34, 4x + 4y = 40. Find x.

Solve: 3x + 5y = 34, 4x + 4y = 40. Find x.

A.

9

B.

10

C.

8

✓ Correct
D.

7

Detailed Explanation

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

Why others are wrong:
A: 9 is incorrect because it does not satisfy the equation.
B: 10 is incorrect because it does not satisfy the equation.
D: 7 is incorrect because it does not satisfy the equation.
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