I'm struggling to solve for x in the following:
Do I multiply each side by
Thanks in advance,
mb
You could do that, or multiply through by the larger denominator in order to get a linear equation.
Do I multiply each side by
Thanks for your reply! I was using the brackets to separate the factorials. I've edited the question so it's clearer.You could do that, or multiply through by the larger denominator in order to get a linear equation.
My apologies: For factorials, of course (x - 7)! is larger than (x - 8)!, because (x - 7)! = 1*2*3*...*(x - 9)*(x - 8)*(x - 7), while (x - 8)! = 1*2*3*...*(x - 9)(x - 8)....I've done something wrong by this point because the answer is supposed to be 15 and this isn't headed in that direction.
Got it! Thanks very much!!My apologies: For factorials, of course (x - 7)! is larger than (x - 8)!, because (x - 7)! = 1*2*3*...*(x - 9)*(x - 8)*(x - 7), while (x - 8)! = 1*2*3*...*(x - 9)(x - 8)....I've done something wrong by this point because the answer is supposed to be 15 and this isn't headed in that direction.
Start from your first equation in your last post, noting that (x - 8)! / (x - 7)! = 1/(x - 7).