What are the 3 equations ?

idk but heres how to do it

Step-by-step explanation:

1Pick two pairs: 4x - 3y + z = - 10. 2x + y + 3z = 0. ...

2Eliminate the same variable from each system: 4x - 3y + z = - 10. 2x + y + 3z = 0. ...

3Solve the system of the two new equations: -5y - 5z = - 10. 5y - 7z = 34. ...

4Substitute into one of the original equations: - x + 2y - 5z = 17. ...

5Check: Does 2(1) + 4 + 3(- 2) = 0? Yes.

(3,5)

Step-by-step explanation:

means reflection of point P across the line x = 1.

This reflection has the rule

(all points reflected across the line x = 1 have the same y-coordinate as its preimage and x = 1 is the midpoint between the endpoints with preimage and image x-coordinates, so )

Hence,  

and the image of the point P has the coordinates (3,5).