To find A, add \(1\frac{1}{2}\) to both sides of the equation.<br><br>
• \(A - 1\frac{1}{2} = 3\frac{1}{2}\)<br>
• \(A = 3\frac{1}{2} + 1\frac{1}{2}\)<br>
• Whole numbers: 3 + 1 = 4<br>
• Fractions: \(\frac{1}{2} + \frac{1}{2} = 1\)<br>
• Total: 4 + 1 = 5<br>
• \(A = 5\)<br><br>
Final Answer: 5