what is the result of adding the system of equations? 2x+y=4 3x-y=6

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rhonda45801 rhonda45801

03-02-2019
Mathematics

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what is the result of adding the system of equations? 2x+y=4 3x-y=6

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mathecoach mathecoach · Answer 1 · 2019-02-03T15:26:59+01:00

mathecoach mathecoach

03-02-2019

Answer:

2x + y = 4

3x - y = 6

I + II

2x + y + 3x - y = 4 + 6

5x = 10

x = 2

2*2 + y = 4

y = 0

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wegnerkolmp2741o wegnerkolmp2741o · Answer 2 · 2019-02-03T20:14:26+01:00

wegnerkolmp2741o wegnerkolmp2741o

03-02-2019

Answer:

5x = 10

Yields

x=2 y=0

Step-by-step explanation:

2x+y=4 3x-y=6

We want to add these equations

2x+y=4

3x-y=6

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

5x = 10

If we divide by 5 on each side

5x/5 = 10/5

x =2

Now we can find y

2x+y =4

2(2) +y = 4

4+y =4

Subtract 4 from each side

4-4 +y = 4-4

y =0

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