Question 1 Answer & Explanation - SAT Algebra

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algebra

Solve for $x$ : $\frac{x}{3} + \frac{x}{4} = 7$

Correct Answer: B

Choice Ahoice B is the correct answer.

LCD: 12
Multiply by 12: $4x + 3x = 84$
Combine: $7x = 84$
Divide by 7: $x = 12$
Verify: $4 + 3 = 7$ ✓

Choice Ahoice D is incorrect because calculation error.

Choice Ahoice C is incorrect because calculation error.

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