Mathematics, 20.06.2019 18:04, jasonoliva13

The sum of the product of 4 and x and the product of 7 and y is 61. the sum of the product of 12 and x and the product of 21 and y is 61. what are the values of x and y?

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The sum of the product of 4 and x and the product of 7 and y is 61. the sum of the product of 12 and...