In an LCR circuit, how can the voltage equation be written as? (R, L and C represent the voltages across Resistor, Inductor and Capacitor.)

L + C - R = 0 L - C - R \(\neq \) 0  L + C + R = 0 L + C + R \(\neq \) 0

L + C + R \(\neq \) 0

L + C + R = V where V is the source voltage in the circuit.