3 years ago

IS anyone else having issues accessing Edmnetum?

1 answer:

madam [21]3 years ago

5 0

Answer:no

Step-by-step explanation:

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timofeeve [1]

Do you know what D equals?

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4 years ago

nignag [31]

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Tatiana [17]

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4 years ago

Ludmilka [50]

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Step-by-step explanation:

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3 years ago

Gre4nikov [31]

Answer: (1,-1)

Step-by-step explanation:

- You can multiply the first equation by -1

- Add the equations.

- Solve for x, as following:

$\left \{ {{-5x - 4y = -1} \atop {-3x + 4y = -7}} \right.\\------\\-8x=-8\\x=1$

- Substitute the value of x into any of the original equations and then you must solve for y:

$5(1)+4(y)=1\\4y=-4\\y=-1$

Therefore, the solution is: (1,-1)

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3 years ago