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how to do it using inverse matrices? 1) -90X+ 227 57x 28 y = 74 2) 22x- 14y- -28 48x - 64y = 240

how to do it using inverse matrices?

1) -90X+ 227 57x 28 y = 74 2) 22x- 14y- -28 48x - 64y = 240

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