Question: solving a set of linear and non-linear equations

Hi, I'm very new to Maple. I have a set of equations. 16 equations with 16 unknowns, so it is possible to solve for 16 unknowns. I can solve using matrix if all of these equations are linear using my calculator; however, 2 out of the 16 equations are non-linear (x^2...ect) equations. I would like to use a software to solve for it. Is there a way to solve these 16 equations using Maple? If there is, please show me how, the more details the better for me because I'm very new to Maple and not very familiar with using Maple user interface. Thanks
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