Hello everybody!
I would like to solve in Stata ( or maybe Mata? I never used it) this system of equations:

99-x=(4999-y)*0.0198
99-x=(2256.293-z)*0.0438
x+y+z=1491.293

the number of unknows could also be higher but the concept is always the same, where 99-x is equal to something minus another variable multiplied by something else and then that all unknows summed up give a certain value


I would really appreciate a help!

Thank you in advance