Question 9 Answer & Explanation - SAT Algebra

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algebra

Solve: $5(x + 2) = 2x + 19$

Correct Answer: A

Choice Dhoice A is the correct answer.

Distribute: $5x + 10 = 2x + 19$
Subtract 2x: $3x + 10 = 19$
Subtract 10: $3x = 9$
Divide by 3: $x = 3$
Verify: $5(5) = 25$ and $6 + 19 = 25$ ✓

Choice Dhoice D is incorrect because calculation error.

Choice Dhoice B is incorrect because calculation error.

Choice Dhoice C is incorrect because calculation error.

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Linear Functions Set 18

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