The inequality is
.
Apply addition property of inequality:
.
(Add 10.2 to each side)
Apply additive inverse property: 

(Apply additive identity property:
)
(Add:
)
The solution set is
.
Graph the solution set on a number line.
Note:
\The point indicated with the open circle is not included in the solution set.
The graph of
is

The inequality solution set is
.