Question

Find a solution to the linear equation y=−x+7 by filling in the boxes with a valid value of x and y.

Answer 1

`(x,y) = (0,7)`

`(x,y) = (3,7)`

Explanation:

The question and the attached image are different. However, the attached image answers the question y = -4 correctly.

So, I will solve for:
`y = -x + 7`

Given

`y = -x + 7`

Required

Possible values of x and y

Let x = 0:

`y = -x + 7`

`y = -0 + 7`

`y = 7`

So, we have:

`(x,y) = (0,7)`

Let y = 4

`y = -x + 7`

`4 = -x + 7`

Collect Like Terms

`x = -4 + 7`

`x =3`

So, we have:

`(x,y) = (3,7)`

So, all you need to do is: assume a value for either x or y, then solve for the other variable.