Respuesta :
Answer:
x+y=t+a
Step-by-step explanation:
its seems to be the unwanted question
x+y = a+t
(x is the subject) x=a+t-y
(y is the subject) y=a+t-x
(a is the subject) a=x+y-t
(t is the subject) t=x+y-a
(x is the subject) x=a+t-y
(y is the subject) y=a+t-x
(a is the subject) a=x+y-t
(t is the subject) t=x+y-a