Кто разбирается в олимпиадных задачка ?

Get 40 cups.u would say since the bowl and cups must be equal it would be 40

Ci think but i'm not entirely sure so..

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