Question 6 Answer & Explanation - SAT Algebra

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algebra

If $6x + 3 = 3x + 15$ , what is the value of $x$ ?

Correct Answer: D

Choice Dhoice C is the correct answer.

Subtract 3x: $3x + 3 = 15$
Subtract 3: $3x = 12$
Divide by 3: $x = 4$
Verify: $24 + 3 = 27$ and $12 + 15 = 27$ ✓

Choice Dhoice C is incorrect because calculation error.

Choice Dhoice D is incorrect because calculation error.

Choice Dhoice A is incorrect because calculation error.

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