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2

Set 3: Systems Of Equations (Intermediate)

Explanation

Answer: B

PROBLEM

Solve: 5x + y = 46, 5x + 5y = 70. Find y.

Solve: 5x + y = 46, 5x + 5y = 70. Find y.

A.

8

B.

6

✓ Correct
C.

7

D.

4

Detailed Explanation

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

Why others are wrong:
A: 8 is incorrect because it does not satisfy the equation.
C: 7 is incorrect because it does not satisfy the equation.
D: 4 is incorrect because it does not satisfy the equation.
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