Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have come to this problem.

Could any one tell me in detail how to solve these two types of equations?



share|cite|improve this question

Add both equations to get $d(u+v)/dt=c(u+v)−(u+v)/T+kp$ Now let $z=u+v$. Solve for $z$ then substitute $v=z-u$ in the first equation and solve for $u$

share|cite|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.