The value of t is 3/2 or 1.5
Explanation:
The given expression is 17/20 equals t plus -13/20.
Changing it into an equation form :
⇒ t + (-13/20) = 17/20
Keeping t alone on one side and constant terms to the another side,
t = (17/20) + (13/20)
Since the denominators are same, it is easy to simplify those fractions.
⇒ t = (17+13)/20
⇒ t = 30/20
⇒ t = 3/2
⇒ t = 1.5
The solution is t= 3/2 or t= 1.5