You may have incorrectly tried to simplify by subtracting 5 and dividing by 2 to get $\displaystyle{\left|{b}-{3}\right|}={1}\usepackage{cmbright}\Huge\$ , and then solved $\displaystyle{b}-{3}=-{1}\usepackage{cmbright}\Huge\$ or $\displaystyle{b}-{3}={1}\usepackage{cmbright}\Huge\$ . You should add 5 to both sides, then divide by $\displaystyle-{2}\usepackage{cmbright}\Huge\$ to get $\displaystyle{\left|{b}-{3}\right|}=-{6}\usepackage{cmbright}\Huge\$ . The correct answer is no solution.