Matrices


@udaysingh
let rates be x, y, zso,
90x+100y+20z=800130x+ 50 + 40z=900
60 x+100y+30z=850
three equation three variables.
@udaysingh
let rates be x, y, z
so,
90x+100y+20z=800
130x+ 50 + 40z=900
60 x+100y+30z=850
three equation three variables.