-1.4 + t = 3.6 And we need to solve for t.
Easy, just add 1.4 in each side so we can have the variable t alone on a side, and its value on the other.
-1.4 + t + 1.4 = 3.6 + 1.4
t = 5
You an re-check your answer (very important):
-1.4 + t = -1.4 + 5 = 3.6
The answer has been approved.
Hope this Helps! :)