Given the matrices A =
20
-3 1
2
1
3
B =
and C
=
[22]
,
[22
-2
1
,
solve for the matrix X in the equation
A (X + 3B) = C.

Given the matrices A 20 3 1 2 1 3 B and C 22 22 2 1 solve for the matrix X in the equation A X 3B C class=