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Matrix Equations
A matrix equation is an equation in which a variable is a matrix. Using your knowledge of equal matrices and algebraic properties of addition and subtraction, you can find the value of this unknown matrix.
Matrix Equations
Example of a matrix equation. The variable A in the matrix equation below represents an entire matrix.
Since we know how to add and subtract matrices, we just have to do an entry-by-entry addition to find the value of the matrix A . 
Practice Problems
Solve the matrix equation below.  Answer 
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