Set 1: Systems Of Equations (Intermediate)

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

Explanation

Answer: B

PROBLEM

Solve: x + 5y = 56, 4x + 5y = 74. Find x.

✓ Correct

Detailed Explanation

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

Why others are wrong:

A: 8 is incorrect because it does not satisfy the equation.

C: 5 is incorrect because it does not satisfy the equation.

D: 7 is incorrect because it does not satisfy the equation.

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