Posted by mike on .
Show equation AX=B represents a linear system of two equations in two unknowns. Solve the system and substitute into the matrix equation to check results. I have no idea can you help me out
A=1,2
3,5,
X=x[1]x[2],
B=4 12

Algebra 
Reiny,
The matrix equation AX=B results in the system of equations
x1 + 2x2 = 4
3x1 + 5x2 = 12
I am sure you can solve that.