12. Solve the following system of equations using matrices: 4x + 5y = 40, x - y...

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12. Solve the following system of equations using matrices: 4x + 5y = 40, x - y = 1 y = 4, x = 5. 12. Solve the following system of equations using matrices: 4x + 5y = 40, x - y = 1 y = 4, x = 5

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12. Solve the following system of equations using matrices: 4x + 5y = 40, x - y...

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