Question 1 Answer & Explanation - SAT Algebra

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algebra

Solve for $y$ : $2x + y = 10$

y = -2x + 10

y = -2x - 10

y = 2x + 10

y = 2x - 10

Correct Answer: A

Choice Bhoice A is the correct answer.

Start: $2x + y = 10$
Subtract 2x: $y = -2x + 10$

Choice Bhoice C is incorrect because sign error on $2x$ .

Choice Bhoice D is incorrect because sign error on 10.

Choice Bhoice C is incorrect because sign error on 10 and $2x$ .

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Linear Functions Set 36

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