Judy tosses a coin four times. Draw a tree diagram showing the possible outcomes. Select the probability of getting at least 2 tails.
A. 1/4 B. 11/16. C.3/8. D.5/16

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

Imade the graphics for all of them so check which one is the same as in your pic