Final answer:
The equation t+5.8=2.8 can be solved by subtracting 5.8 from both sides of the equation to isolate the variable t. Therefore, the problem that can be solved by the equation t+5.8=2.8 is finding the difference between a number and 2.8.
Step-by-step explanation:
The equation t+5.8=2.8 can be solved by subtracting 5.8 from both sides of the equation to isolate the variable t. This gives us t = 2.8 - 5.8.
Simplifying this expression, we have t = -3.0.
Therefore, the problem that can be solved by the equation t+5.8=2.8 is finding the difference between a number and 2.8.