The expression is .
Case 1: If a < b Then
\Case 2: If a < b Then
(Product of two same signs is positive)
Solve equation for case 1.
\Apply subtraction property of inequality: Subtract 1.5 from each side.
\ (Apply additive inverse property:
)
(Subtract:
)
Multiply each side by negative sign and flip the symbol.
\Solve equation for case 2.
\Apply addition property of inequality: Add 1.5 each side.
\ (Apply additive inverse property:
)
(Add:
)
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 .