The solution is x = 2/129, y = 142/129, z = 23/129 That is the correct solution for what you posted. Are you sure you copied it correctly? The fact that the answers came out to be such unusual fractions is why I suspect you may not have copied it correctly. You also did not state what method for solving these you are studying. There are many methods. Post again making sure you copy the problem correctly, and that you tell what method for solving systems of equation you are studying. Then we will walk you through it, not just post the answer. Edwin