Lol it's ok I solved it. I assumed that m=0, thus the right answer is 1/2.
Thanks anyways.
Hello, my name is Ameer, and I'm new here.
So basically I'm studying math for the Psychometric exam (an Israeli exam required for university), and I need help solving this:
(m+5)/(m-5)+(m+15)/(10-2m)=?
The following possibilities are given:
- 1/2
- 2
- -1/2
- -2
Which one is the right solution? And please explain to me how you got to the right solution.
Thanks a lot for the help.
EDIT: I'll be posting more questions on math throughout my studying period, so expect more from me, lol!
Note that you can factor a -2 out of the denominator of the second fraction, leaving -2(m- 5). And that means that you can get "common denominators" by multiplying the numerator and denominator of the first fraction by -2.:
-2(m+5)/(-2(m-5))+ (m+ 15)/(-2)(m- 5). Now the denominators are the same so you just need to add the numerators.
It was kind of a give away that they listed only constants!The following possibilities are given:
- 1/2
- 2
- -1/2
- -2
Which one is the right solution? And please explain to me how you got to the right solution.
Thanks a lot for the help.
The correct solution is NOT in that list! It is a function of m, not a constant.
EDIT: I'll be posting more questions on math throughout my studying period, so expect more from me, lol!