
The inequality is
.
Write
as 
The first inequality is
.
Apply addition property of inequality: Add 6 to each side.
\
(Apply additive inverse property:
)
(Apply additive identity property:
)
(Add:
)
The next inequality is
.
Apply addition property of inequality: Add 6 to each side.
\
(Apply additive inverse property:
)
(Apply additive identity property:
)
(Add:
)
Graph the solution set on number line.
The solution set
.