Solving system of equation in matlab

Given system of linear equation

$$3a+2b-c = 10$$

clear; clc;

A = [3,2,-1;-1,3,2;1,-1,-1]

B = [10;5;-1];

% column matrix X = [a;b;c];
X = inv(A)*B;

% or you can use following operation to find the solutions. X = A \ B; (left division operator)

% x [-2,5,-6]