Question 3 Answer & Explanation - SAT Algebra

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algebra

Solve: $7x + 3x - 10 = 40$

Correct Answer: A

Choice Ahoice C is the correct answer.

Combine: $10x - 10 = 40$
Add 10: $10x = 50$
Divide by 10: $x = 5$
Verify: $35 + 15 - 10 = 40$ ✓

Choice Ahoice B is incorrect because calculation error.

Choice Ahoice D is incorrect because calculation error.

Choice Ahoice C is incorrect because calculation error.

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Linear Functions Set 15

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