The inequality is
Apply division property of inequality: divide each side by 10.
\
(cancel common terms)
(Divide:
)
(Subtract 0.4s from each side)
(Additive inverse property:
)
(Subtract:
)
(Subtract 3 from each side)
(Comutative property:
)
(Additive inverse property:
)
(Additive identity property:
)
(Additive identity property:
)
(divide each side by 0.6)
(cancel common terms)
(Divide:
)
Graph the solution set on a number line
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Note: A circle means that this point is not included in the solution set.
The inequality solution is