Simplify brackets
16/20 = t + -13/20
Simplify 16/20 to 4/5
5/5 = t - 13/20
Add 13/20 to both sides
4/5 + 13/20 = t
Simplify 4/5 + 13/20 to 29/20
29/20 = t
Switch sides
t = 29/20
