Math Help

[LegendKiller]

I feel like a complete dolt for asking this...


8 = 8.35w + 7.94(1-w)

w=?


Break it down step by step please. LK has forgotten simple mathamatical rules in his plethoric use of Solver.

I know that if I take (8-7.94)/ (8.35-7.94) = .1463, the answer I am looking for, but how do I get to that point...???

Sigh, I hate math without short-cuts...

[InfiniteNothing]

Distribute the 7.94 so you get
8=8.35w+7.94-7.94w
Then combine all W terms
8=(8.35-7.94)w+7.94
subtract 7.94 from both sides and you have
(8-7.94)=(8.35-7.94)w
Divide both sides by (8.35-7.94) to get your expression
(8-7.94)/ (8.35-7.94)=w=0.1463 (assuming you did your math right. I just did this symbolically.)

[LegendKiller]

Grrr...forgot the 7.94(1-w) = 7.94*(1) + 7.94*(-1(w))

Solver = win

however, when all you have is pen + paper, solver doesn't do crap for you :)


Thanks!

[brainsmile]

hehehe it gets the best of us from time to time

[Houdini]

Distribute the 7.94 so you get
8=8.35w+7.94-7.94w
Then combine all W terms
8=(8.35-7.94)w+7.94
subtract 7.94 from both sides and you have
(8-7.94)=(8.35-7.94)w
Divide both sides by (8.35-7.94) to get your expression
(8-7.94)/ (8.35-7.94)=w=0.1463 (assuming you did your math right. I just did this symbolically.)

Very nice answer and stepped explanation.

H <---could do algebra, calc, and diffEq in his head about 6 years ago. I didn't use it, so I lost it, except for the basics of each. :(