The inequality is .
Case 1: If a < b Then
\Case 2: If a < b Then
(Multiply each side by negative one and flip the symbol)
(Product of two same signs is positive)
Solve inequality for case 1.
\Apply subtraction property of inequality: Subtract 3 from each side.
\ (Apply additive inverse property:
)
(Subtract:
)
Solve inequality for case 2.
\Apply subtraction property of inequality: Subtract 3 from each side.
\ (Apply additive inverse property:
)
(Subtract:
)
Graph the solution set on a number line.
\
Note: A circle means that this point is not included in the solution set.
The solution set is .