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9

Set 1: Systems Of Equations (Advanced)

Explanation

Answer: B

PROBLEM

Solve: 4x + y = 35, 3x + y = 29. Find x.

Solve: 4x + y = 35, 3x + y = 29. Find x.

A.

7

B.

6

✓ Correct
C.

5

D.

4

Detailed Explanation

Choice B is the best answer. Using elimination or substitution: x = 6

Why others are wrong:
A: 7 is incorrect because it does not satisfy the equation.
C: 5 is incorrect because it does not satisfy the equation.
D: 4 is incorrect because it does not satisfy the equation.
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