To isolate t in the equation A = m/2 - t, we can follow these steps:
1. Start with the equation: A = m/2 - t.
2. Add t to both sides of the equation to isolate the term involving t on one side:
A + t = m/2.
3. Subtract A from both sides to move the A term to the other side:
t = m/2 - A.
Therefore, isolating t in the equation A = m/2 - t gives us t = m/2 - A.