The inequality is .
Apply distributive property:
(Multiply:
)
Apply subtraction property of inequality: Subtract 48 from each side.
\
(Additive inverse property:
)
(Additive identity property:
)
(Subtract :
)
(Subtract 12h from each side)
(Commutative property: a+b = b+a)
(Additive inverse property:
)
(Additive identity property:
)
(Subtract:
)
(Divide each side by 4)
(Cancel common terms)
(Divide:
)
Graph the solution set on a number line
Note: A dot means that this point is included in the solution set.
The inequality solution set is .