The inequality .
Apply Substraction property of inequality: subtract from 8n each side.
\ (Additive inverse property:
)
(Additive identity property:
)
(subtract:
)
Apply Substraction property of inequality: subtract from 9 each side.
\
(Additive inverse property:
) \ \
(Additive identity property:
)
(subtract:-
) \ \
(Divide both side by 9) \ \
(cancel common terms) \ \
(Divide:
)
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 a number greater than -1.22 in .
(substitute:n=-1.23)
(Multiply: )
(Subtract:)
this value is true
\The inequality solution is .