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Bingel [31]
3 years ago
6

30 Solve by elimination: 2x - 3y = -6 -2x - 2y = 26 ,

Mathematics
1 answer:
Arturiano [62]3 years ago
5 0

Answer:

x=-9,y=-4

Step-by-step explanation:

2x-3y=-6...(1)

-2x-2y=26...(2)

To solve we will have to eliminate one of the given variables, the variable to be eliminated is x

And it can be done by adding up (1) and (2)

It gives

-5y=20

Divide both sides by-5

y=-4

Then substitute the value of y into (1)

2x-3(-4)=-6

2x+12=-6

Substrate 12 from both sides

2x=-18

Divide both sides by 2

x=-9

Therefore x gives -9 and y gives-4

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Step-by-step explanation:

The given expressions are 3x²- 4x-4 and 3x²+8x+4.

We need to add these two expressions.

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3 years ago
Which value is equivalent to 4
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Hey!!!!!

It looks like you meant to attach a picture, forgot, or your internet connection went out. Because of whatever the cause, we cannot answer your question!

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