  We derive the relativistic non-resistive, viscous second-order
magnetohydrodynamic equations for the dissipative quantities using the
relaxation time approximation. The Boltzmann equation is solved for a system of
particles and antiparticles using Chapman-Enskog like gradient expansion of the
single-particle distribution function truncated at second order. In the first
order, the transport coefficients are independent of the magnetic field. In the
second-order, new transport coefficients that couple magnetic field and the
dissipative quantities appear which are different from those obtained in the
14-moment approximation \cite{Denicol:2018rbw} in the presence of a magnetic
field. However, in the limit of the weak magnetic field, the form of these
equations are identical to the 14-moment approximation albeit with a different
values of these coefficients. We also derive the anisotropic transport
coefficients in the Navier-Stokes limit.
