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Mimiwold
New Member

USA
2 Posts
Posted - 07/14/2009 :  21:03:26  Show Profile  Reply with Quote
I have this one and I keep getting confused:

abcd-ef=g solve for b
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Subhotosh Khan
Advanced Member

USA
9069 Posts
Posted - 07/15/2009 :  10:47:33  Show Profile  Reply with Quote
quote:
Originally posted by Mimiwold

I have this one and I keep getting confused:

abcd-ef=g solve for b


Isolate terms containg 'b'

abcd - ef = g ('f' does not have any terms containg 'b' - so it needs to be eliminated from Left-hand-side)

abcd - ef + ef = g + ef

abcd = g + ef

Now you have to furthe "isolate" 'b' by dividing both sides by 'acd'

Continue....
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nycfunction
New Member

USA
1 Posts
Posted - 05/17/2010 :  20:16:51  Show Profile  Reply with Quote
quote:
Originally posted by Mimiwold

I have this one and I keep getting confused:

abcd-ef=g solve for b


add gf to both sides of the equation.

abcd = g + ef

Now divide both sides of your equation by acd.

b = (g + ef)/acd

To solve for a letter means to isolate the letter on one side of the equation.
Edited by - nycfunction on 05/17/2010 20:19:03
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