I also need the coordinate of N’ when MN is reflected across y= -x+3
much appreciated for the answer pls!

No i refuse to tell you the answer but the estimate is 10

All you have to do is multiply

You move the constant to the right side and change its sign to be 9z= -6 -8. that’s the first step.the second step would be calculate the difference of -8-6 to get -14. you equation should now be 9z=-14the last step is to divide both sides by 9 to get z=-14/9hope this