At a concession stand, three hot dog(s) and two hamburger(s) cost $9.25, two hot dog(s) and three hamburger(s) cost $9.50. Find the cost of one hot dog and the cost of one hamburger What is the cost of one hot dog?

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