\ \
The inequality is . \ \
Solve the inequality. \ \
\ (Original inequality) \ \
(Subtract
from each side) \ \
(Apply additive inverse property:
) \ \
(Subtract:
) \ \
(Multiply each side by
) \ \
(Cancel common terms) \ \
(Multiply) \ \
(Subtract
from each side) \ \
(Apply additive inverse property:
) \ \
(Subtract:
) \ \
(Divide each side by
) \ \
(Cancel common terms) \ \
The graph of the solution set on a number line diagram. \ \
\ \ \
A circle means that this point is not included in the solution set. \ \
\ \ \
Check solution for -value. \ \
Case(i): \ \
(Original inequality) \ \
(Substitute
) \ \
(Multiply) \ \
(Add:
) \ \
(Simplify) \ \
(Add:
) \ \
Since, is true inequality. \ \
Case(ii): \ \
(Original inequality) \ \
(Substitute
) \ \
(Multiply) \ \
(Add:
) \ \
(Simplify) \ \
(Add:
) \ \
Since, is false ineqaulity. \ \
The solution set of the inequality is .