The inequality equation is
Apply divison property of inequality: Divide each side by 16.
\ (Cancel common terms)
(Divide:
)
(Multiply each side by negitive one and flip the symbol)
(Product of two same signs is positive)
Graph the solution set on a number line.
Note: A dot means that this point is included in the solution set.
Check:
\To check, substitute 4, a number greater than 4 in .
(Substitute: z = 4)
(Multiply:
)
The inequality is true.
The inequality solution is .