Question

WRITE ALL YOUR CALCULATIONS. INDICATE WHAT THE REVERSE MATRIX IS AND HOW MUCH IT IS VALUE X, Y, Z,

20X + 25Y + 40Z + 50T = 1970

3X + 4Y + 7Z + 20T = 504

10X +15Y +20Z + 22T = 970

10X + 8Y + 10Z +15T = 601

Answer 1

Values of X, Y, Z are nothing but the multiplication of above with right sided matrix

inverse_matrix =

0.0396 -0.0817 -0.1465 0.1918
-0.2256 0.1066 0.4085 0.0107
0.1728 -0.1368 -0.1909 -0.1137
-0.0213 0.0888 0.0071 0.0089

values =

10.0000
12.0000
18.0000
15.0000