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Blizzard [7]
3 years ago
9

2x + 2y = -2 3x - 2y = 12 Answer:

Mathematics
1 answer:
yarga [219]3 years ago
6 0

Answer:

(2,-3)

Step-by-step explanation:

2x + 2y = -2

3x - 2y = 12

Add the two equations to eliminate y

2x + 2y = -2

3x - 2y = 12

-----------------------

5x   = 10

5x/5 = 10/5

x = 2

Now find y

2x+2y = -2

2(2)+2y = -2

4+2y = -2

Subtract 4 from each side

4-4 +2y = -2-4

2y = -6

Divide by 2

2y/2 = -6/2

y = -3

(2,-3)

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Answer:

You aren't asked which variable to solve for.

If we're solving for x then

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Step-by-step explanation:

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What is the surface area of a cone when the slant height is 6 mm and the diameter is 4 mm?
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