solve the system of the linear equation below. matrix!!

= 1 31 +32 +33 + ... + 2 + 2xy + 2.63 + + 2x 2 + 2x2 +3.73 +... + 3.0 II Ur-.- Er - lr - Ir MX-...- Er - Tr+lr- - 6x + Tt - Ir- = 2 (d) - . : 1.21 +212 + 3x3 + + + nxn 1