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14-12-2014
Mathematics

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Solving system by elimination
7x+2y=24
8x+2y=30

Respuesta :

14-12-2014

7x+2y=24
-8x-2y=-30 (multiplied each side by -1)
-x = -6
x = 6

7x+2y=24
7(6)+2y=24
42+2y=24
2y = -18
y = -9

Answer Link

Potatoes143 Potatoes143

14-12-2014

7x+2y=24
-8x-2y=-30
-x=-6
x=6
7(6)+2y=24
42+2y=24
2y=-18
y=-9

Answer Link

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