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CaHeK987 [17]
3 years ago
7

Solve the simultaneous equations 3x – y = 12 x +y = – 4 D = y = N

Mathematics
2 answers:
Iteru [2.4K]3 years ago
6 0

Answer:

x is 2 and y is -6

Step-by-step explanation:

3x-y=12

x+y=-4

Adding both equations to eliminate y

4x=8

x=2

Substituting

2+y=-4

y=-6

x is 2 and y is -6

Proving that this answer is correct:

Substituting x is 2 and y is -6

3*2-(-6)=12 6+6=12 12=12 True

2-6=-4 -4=-4 True

Therefore, x is 2 and y is -6

user100 [1]3 years ago
3 0

Answer:

x+y=-4=y=-x-4

3x-(-x-4)=12

4x-4=12

4x=16

x=4

4+y=-4

y=-4

solution

(4,-4)

690th QUESTION LETS GOOO!!!

Hope This Helps!!!

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7 0
3 years ago
Kite EFGH is inscribed in a rectangle such that F and H are midpoints and EG is parallel to the side of the rectangle.
aivan3 [116]

Answer:

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Step-by-step explanation:

<em>Graph is attached.</em>

<em />

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Any help is apprenticed!
nirvana33 [79]
This is the answer. Hope it helps

5 0
3 years ago
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