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प्रश्न
If (x − 1, y + 4) = (1, 2) find the values of x and y
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उत्तर
(x − 1, y + 4) = (1, 2)
By the definition of equality of ordered pairs, we have
x − 1 = 1 and y + 4 = 2
∴ x = 2 and y = − 2
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