solving for n (easy)

This used to be really easy for me, but after 1 month away from school I've seemed to forget it all

I need to solve this for n:

Code:

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y    n
-- + --  = 5
c      d

---

thanks in advance,

Dimava

one more plz...


solve for t:

Code:

---

    t   
-------- = s
 w+t

---

thanks

n = d (5 - y/c)

Quote:

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Originally posted by dimava
one more plz...

solve for t:

Code:

---

    t   
-------- = s
 w+t

---

---

t = s (w + t)
t = sw + st
t - st = sw
(1 - s)t = sw
t = sw/(1 - s)

thanks :cool: