Itsmemia
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Solve each system of equation algebraically
1. y=x+7 y=4______
2. y=x+5 y=3x______
3. y=x-9 y=-4x_______
4. x+3y=1 y=2x+5_______
PLEASE HELP!!

Respuesta :

1. x=-3
2.x=5/2
3.x=9/5
4.x=-2
1. (-3, 4)
2. (5/2, 15/2)
3. (9/5, -36/5)
4. (-2, 1)

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