Problem
(3) Solve for \( x: \frac{1}{2}(4 x+6)=-5 x+24.7 \) (A) \( x=3.1 \) (B) \( x=3 \) (C) \( x=7 \) (D) \( x=-7.23 \)
Solution
Step 1 ：Step 1: \( \frac{1}{2}(4 x+6)=-5 x+24.7 \)
Step 2 ：Step 2: \( 2x+3=-5x+24.7 \)
Step 3 ：Step 3: \( 7x=21.7 \)
Step 4 ：Step 4: \( x=3 \)
