A aquacat New member Joined Oct 4, 2016 Messages 1 Oct 4, 2016 #1 Solve for b. 1/t = 1/a + 1/b I know the answer is b = at/a-t but I don't know how to show how I got there.
Solve for b. 1/t = 1/a + 1/b I know the answer is b = at/a-t but I don't know how to show how I got there.
D Deleted member 4993 Guest Oct 4, 2016 #2 aquacat said: Solve for b. 1/t = 1/a + 1/b I know the answer is b = at/a-t but I don't know how to show how I got there. Click to expand... 1/t = 1/a + 1/b 1/b = 1/t - 1/a continue....
aquacat said: Solve for b. 1/t = 1/a + 1/b I know the answer is b = at/a-t but I don't know how to show how I got there. Click to expand... 1/t = 1/a + 1/b 1/b = 1/t - 1/a continue....
B Bob Brown MSEE Full Member Joined Oct 25, 2012 Messages 597 Oct 4, 2016 #3 aquacat said: Solve for b. 1/t = 1/a + 1/b I know the answer is b = at/a-t but I don't know how to show how I got there. Click to expand... Sometimes it is easier to see the answer if you first get rid of all the fractions. Multiply both sides by abt. ab = bt + at ab - bt = at b(a-t) = at etc. Last edited: Oct 4, 2016
aquacat said: Solve for b. 1/t = 1/a + 1/b I know the answer is b = at/a-t but I don't know how to show how I got there. Click to expand... Sometimes it is easier to see the answer if you first get rid of all the fractions. Multiply both sides by abt. ab = bt + at ab - bt = at b(a-t) = at etc.
