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Mathematics, 23.06.2021 19:00 Hellboy467

Solve the pair of simultaneous equation 2x - y=5 ,x + y=4 and 2x +2y =20 ,2x -2y =8

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Solve the pair of simultaneous equation 2x - y=5 ,x + y=4 and 2x +2y =20 ,2x -2y =8...

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