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Mathematics, 13.11.2020 04:30 zaeswag23

Solve the following using substitution

x-2y=-1 and -4x-2y=4

7x+9y=-21 and 5x+4y=2

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Solve the following using substitution

x-2y=-1 and -4x-2y=4

7x+9y=-21 and 5x+...
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