#### Answer

$t=-4
$

#### Work Step by Step

Using the properties of equality, the solution to the given equation, $
12-t=16
$, is
\begin{array}{l}
-t=16-12
\\\\
-t=4
\\\\
t=\dfrac{4}{-1}
\\\\
t=-4
.\end{array}
Checking:
\begin{array}{l}
12-(-4)=16
\\\\
12+4=16
\\\\
16=16
\text{ (TRUE)}
.\end{array}
Hence, the solution is $
t=-4
.$