Aire? Who-Z) Cuest Dis=9 __ Kincine Solve for a: A a=(1)/(2) 3=4-2a

To solve for \( a \) in the equation \( 3 = 4 - 2a \), follow these steps:<br /><br />1. Start with the given equation:<br /> \[<br /> 3 = 4 - 2a<br /> \]<br /><br />2. Subtract 4 from both sides to isolate the term with \( a \):<br /> \[<br /> 3 - 4 = -2a<br /> \]<br /> Simplify the left side:<br /> \[<br /> -1 = -2a<br /> \]<br /><br />3. Divide both sides by -2 to solve for \( a \):<br /> \[<br /> a = \frac{-1}{-2}<br /> \]<br /> Simplify the fraction:<br /> \[<br /> a = \frac{1}{2}<br /> \]<br /><br />So, the correct answer is:<br />\[<br />a = \frac{1}{2}<br />\]