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Solve the system of equations using matrices: { 7 x + 5 y = 3 3 x − 2 y = 22. 7 x + 5 y = 3 3 x − 2 y = 22 → [ 7 x + 5 y 3 x − 2 y] = [ 3 22] Write the matrix on the left as the product of coefficients
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Solve the system of equations using a matrix: { x − 2 y + 3 z = 1 x + y − 3 z = 7 3 x − 4 y + 5 z = 7. Write the augmented matrix for the equations. The entry in row 1, column 1 is 1. Using row
