SOLUTION: Solve matrix equation for x: 3x+A=B Help, don't understand how to do this one. Can anyone show me step by step how to do this?

Question 153909: Solve matrix equation for x: 3x+A=B
Help, don't understand how to do this one. Can anyone show me step by step how to do this?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
It's easier to show if you have some matrices but I'll make them up here for example.
Let

From that, then

Solve each matrix element equation for ,

.
.
.

Plugging in all the values,

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