SOLUTION: Solve the system by using the inverse of the coefficient matrix A. 2x + 4y = 5 −x + 3y = −2

SOLUTION: Solve the system by using the inverse of the coefficient matrix A. 2x + 4y = 5 −x + 3y = −2

Algebra.Com

Question 1141158: Solve the system by using the inverse of the coefficient matrix A.
2x + 4y = 5
−x + 3y = −2
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

Your matrix:

Write the main matrix:

Determinant is not zero, therefore inverse matrix exists:

Calculate the inverse matrix

Multiply the inverse matrix by the solution vector:

Solution set:

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