Can I Solve for A and B in These Equations?

[clemon!!]

80A = 12000 - AB
2000A = 2000 - AB

I can find A and B right? If not I can provide more??


Thanks !

 

[lazyaditya]

Yes you can find out A and B !

 

[clemon!!]

also is there any way to set up excel so that as i change the figures the answer what A and B is automatically changes?

i'm sorry to be so bad at math - it's been like 12 years since i stuided any

 

[clemon!!]

Yes you can find out A and B !

honestly - i am using software that runs out in like 20 hours. this is a music hobby thing - i don't suppose you can give me the answer plus also if excell will do it for me?? i know it'd be simple for everyone here... :) :) !there are online calculators but they don't seem to cope with the A*B component!

 

[chiro]

Hey clemon.

Minus the first equation from the second and collect the terms for the A's and solve for A. Then plug A into one of the equations and solve for B.

 

[clemon!!]

they don't converge!

what about:

100=A/(100-B)+C
12000=A/(80-B)+C
200=A(5000-B)+C
thanks!

 

[DaleSwanson]

Since both equations have an identical term (AB) solve both for that.

http://www.wolframalpha.com/input/?i=80A+%3D+12000+-+AB%2C+2000A+%3D+2000+-+AB

 

[clemon!!]

thanks - I'm trying to find it with excel atm. not sure if these figures even converge tbh.

 

[HallsofIvy]

80A = 12000 - AB
2000A = 2000 - AB

Didn't you consider getting rid of the "AB" term by subtracting one equation from the other? 80A- 2000A= -1920A= 10000. Solve that for A and then solve either of the two equations, using that value of A, for B