The inequality is
Apply addition property of inequality: Add 9 to each side .
\
(Commutative property of addition:
)
(Additive inverse property:
)
(Add:
)
\
Graph the solution set on a number line
Note: A circle means that this point is not included in the solution set.
Check:
\To check, substitute greater than 29 in
(Substitute
)
(Add:
)
The inequality is true.
The inequality solution is .