Problem
8. If $3<2 x-4<6$, which of the following inequalities gives all possible values for $2 x$ ? A) $7<2 x<10$ B) $3.5<2 x<5$ C) $7>2 x>10$ D) No solution
Solution
Step 1 ：Add 4 to all sides of the inequality: $7<2x<10$
Step 2 ：Now, we can see that the inequality matches option A, so the answer is \(\boxed{\text{A)}\ 7<2x<10}\)
