

The given equation
Rewrite the equation is 
First case:- 
According to addition property of equality: Add 8 to each side.
\
(Additive inverse property:
)
(Additive identity property:
)
(Add:
)
(Divide each side by 5)
(Cancel common terms)
(Divide:
)
Second case:- 
According to addition property of equality: Add 8 to each side.
\
(Additive inverse property:
)
(Additive identity property:
)
(Add:
)
(Divide each side by 5)
(Cancel common terms)
(Divide:
)
The value of
and 