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24 January, 05:29

Solve this system of equations using any method. 2x - y = 5 4x + y = 7

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  1. 24 January, 05:36
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    Substitute on equation 2, y = - 4x + 7. so equation 1 becomes 2x - (-4x + 7) = 6x - 7 = 5. 6x = 12, so x = 2. from above, y = - 4x+7 = - 4 (2) + 7 = - 1
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