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7 April, 13:07

Solve by elimination x+3y=-4 + y+x=0

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  1. 7 April, 14:53
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    X+3y=-4 x+3y=-4]

    y+x=0 ]multiply minus===> - y-x=0 ]===elimination x===>2y=-4 = = >y=-2 x=2

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