Kilinç C.B.2019-10-272019-10-2720040004640X0004-640Xhttps://hdl.handle.net/11454/22670Einstein's equations with variable gravitational and cosmological constants are considered in the presence of a perfect fluid for the anizotropic Bianchi I universe in a way which conserving the energy-momentum tensor. Two solutions are found, one of which the cosmological term varies inversely with power law of time. The other of which cosmological term is constant.eninfo:eu-repo/semantics/closedAccessBianchi I ModelsVariable G and ?Article28901.Feb103109Q3