

The original function is
Write
as
or
First solve the case
.
(Subtract 4 from each side)
(Additive inerse property:
)
(Additive identity property:
)
(Subtract:
)
Apply Division proparty of inequality: If a = b than 
(Divide each side by 6)
(Cancel commen terms)
(Divide:
)
Next solve the casev .
(Subtract 4 from each side)
(Additive inerse property:
)
(Additive identity property:
)
(Subtract:
)
Apply Division proparty of inequality: If a = b than 
(Divide each side by 6)
(Cancel commen terms)