You purchase a tractor for $22500. The value of the tractor decreases by 7% per year. How long will it take for the value of the tractor to be $14500

3batches is the answer

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