If you add 2 to both sides, you will find that the solution to this inequality is $\displaystyle{a}>{3}\usepackage{cmbright}\Huge\$ . However, the given graph represents the inequality $\displaystyle{a}<{3}\usepackage{cmbright}\Huge\$ . The correct answer is $\displaystyle{a}+{3}<{6}\usepackage{cmbright}\Huge\$ .