The inequality is
.
Above equation can write equivalent equations
\
.
Solve for r in inequality
.
(Subtract 1 from each side)
(Apply additive inverse property:
)
(Apply additive identity property:
)
(Subtract:
)
(Divide each side by 2)
(Cancel common terms)
(Divide:
)
Solve for x in inequality
.
(Subtract 1 from each side)
(Apply additive inverse property:
)
(Apply additive identity property:
)
(Subtract:
)
(Divide each side by 2)
(Cancel common terms)
(Divide:
)
The solutions are
or
.
Graph the solution set on a number line.
\
Note: A circle means that this point is included in the solution set.
The number line of
or
is
