Question

Which equation results from adding the equations in this system?

Negative 2 x + y = 8. 5 x minus y = negative 5.
7 x = 13
7 x = 3
3 x = 3
3 x = 13

Answer 1

It's 3x=3

Explanation:

I did it in edg! But its correct

Answer 2

The correct option is second one i.e 7x = 3

Therefore the results from adding the equation in this system is

`7x=3`

Explanation:

Given:

Equations as

`2x+y=8` .......................1

`5x-y=-5` .......................2

To Find :

Result when adding equation 1 and 2 = ?

Solution

On adding equation 1 and 2 the "y" term will get cancel and the like terms will combine that is add (2x and 5x ) and ( 8 and - 5) as shown below

2x + y = 8

5x - y = - 5

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7x + 0 = 3

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Therefore the results from adding the equation in this system is

`7x=3`