so 5d-9=24 is a simple algebraic problem, and the goal of this problem is to isolate the variable (d) so that we can find out what d is. So in this problem, the first thing we can do to isolate d would be to get rid of the -9, so in 5d-9, to get rid of the 9, we would add a 9, and then we would also add a 9 to the right side, because anything we do to one side of the equation must be done to the oter side. So after we add 9 to both sides of the equation, we get 5d=-15. Then we want to get rid of the coefficient on the d, so we divide both sides by 5, this removes the 5 from the d, making it d=-3. and thats your answer, d=-3. Hope this helps, if you are confused just ask. :)
so 5d-9=24 is a simple algebraic problem, and the goal of this problem is to isolate the variable (d) so that we can find out what d is. So in this problem, the first thing we can do to isolate d would be to get rid of the -9, so in 5d-9, to get rid of the 9, we would add a 9, and then we would also add a 9 to the right side, because anything we do to one side of the equation must be done to the oter side. So after we add 9 to both sides of the equation, we get 5d=-15. Then we want to get rid of the coefficient on the d, so we divide both sides by 5, this removes the 5 from the d, making it d=-3. and thats your answer, d=-3. Hope this helps, if you are confused just ask. :)