Set 6: Linear Inequalities (Intermediate)

Choice A is correct. Choice A is the correct answer. Isolate $x$ in the middle. 1. Add 4: $-10 + 4 \leq 2 x \leq 6 + 4$, giving $-6 \leq 2 x \leq 10$ 2. Divide by 2: $-3 \leq x \leq 5$ Strategic Tip: Check both endpoints: $-6/2 = -3$ and $10 /2 = 5$. Choice B is incorrect because it divides 6 by 2 incorrectly or forgets to add 4 to the right side. Choice C is incorrect because it subtracts 4 instead of adding. Choice D is incorrect because it combines multiple errors.