anonymous
  • anonymous
I understood none of today's lesson and I need an explanation on a couple problems, the problems where you have to take an equation with multiple variables and make it so one side has a single isolated variable. Please explain these: 2m - nx = x + 4 solve for x x/a - 1 = y/b solve for x V=1/3 (pi) r^2 (h) solve for H A= (f+g/2) h solve for g I only need explanations.
Mathematics
katieb
  • katieb
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jchick
  • jchick
2m - nx = x + 4
jchick
  • jchick
2m = x + 4 + nx
jchick
  • jchick
2m - 4 = x + nx

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jchick
  • jchick
2m - 4 = x(1 + n)
jchick
  • jchick
|dw:1439933718901:dw|
jchick
  • jchick
|dw:1439933817657:dw|
anonymous
  • anonymous
Thats nice but what about some of the other ones? Mostly having trouble with uhh.. all of them
triciaal
  • triciaal
general guidelines to follow: to solve for a particular variable isolate all the terms with that variable to one side of the equation. whatever you have to do to isolate the variable all do the same operation to the other side of the equation to maintain the balance. simplify. next divide each side of the equation by the coefficient of the desired variable.
jchick
  • jchick
I only had time to do that one sorry
triciaal
  • triciaal
*all should be always
triciaal
  • triciaal
review what was done above following the steps. do you have any questions?
anonymous
  • anonymous
@triciaal Nope, thanks
triciaal
  • triciaal
you are welcome

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