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(Solved): Problem 12: Use an inverse matrix to solve each system of linear equations. State the formula you us ...
Problem 12: Use an inverse matrix to solve each system of linear equations. State the formula you using. assume that coefficient matrix is invertible
x_(1)+2x_(2)+x_(3)=2
x_(1)+2x_(2)-x_(3)=4
x_(1)-2x_(2)+x_(3)=-2