3 equations with 3 unknowns I need the answer ASAP plz help

why when I try to solve these three equations with 3 unknows manully by hand it doesn't give me th same answer here's the code:

A=[146 -146 0;146 -146+18.3*i 18.3*i;0 18.3*i 2.942-16.88*i];

B=[415;0;0];

ans=A\B

Answer 1

[KALYAN ACHARJYA]

Solve System of Linear Equations Using linsolve

https://in.mathworks.com/help/symbolic/solve-a-system-of-linear-equations.html