1. The problem is to understand the expression "1 is t" and interpret it mathematically. 2. Assuming the problem means to solve for $t$ given the equation $1 = t$. 3. The formula used here is the identity property of equality, which states that if two expressions are equal, then the variable equals the value on the other side. 4. Therefore, from $1 = t$, we directly get $t = 1$. 5. This means the value of $t$ is 1. 6. No further simplification is needed as the equation is already solved. Final answer: $t = 1$