Archived

This topic is now archived and is closed to further replies.

Need help rearranging equation

This topic is 5996 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

Recommended Posts

I''m stumped on this. I cant seem to properly rearrange this equation to solve for n. Can anyone help? Heres the equation: z + (na + .5n(n - 1)d) = c This equation uses five variables : z, a, b, c, n Any help is much appreciated.

Share on other sites
Looks to be a basic quadratic equation so put it into the format of
ax^2+bx+c = 0 and use the general equation for solving quadratics.

Just to start you off:

  z + (na+0.5n(n-1)d) = cna + 0.5dn^2 - 0.5nd + z-c = 00.5dn^2 + (a - 0.5d)n + z-c = 0...

Share on other sites
Thanx alot! That definitely put me in the right direction. I just applied that to the quadratic formula and it worked just fine. Thanx again.

1. 1
2. 2
3. 3
Rutin
22
4. 4
JoeJ
17
5. 5

• 14
• 30
• 13
• 11
• 11
• Forum Statistics

• Total Topics
631774
• Total Posts
3002297
×