The inequality is
Apply addition property of inequality: Add 6 to each side .
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(Additive inverse property:
)
(Additive identity property:
)
(Add:
)
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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 less than 19 in
(Substitute
)
(Subtract:
)
The inequality is true.
The inequality solution is .