Solve the following for the variable "b". Please note that the variables are "a" and "A" are different and unique variables.
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This is what I came up with am I on the right track??
A = ½ ha + ½ hb
That was OK but not this:
A- ½ ha / ½ h = ½ hb / ½ h
A – a = b
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+ 
Next, clear of fractions by multiplying every
term on both sides by LCD = 
:
· = · + ·
= +
Get the only term containing 
alone on the right by
subtracting from both sides:
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Divide both sides by the coefficient of , which is 
:
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Cancel only the 's on the right:
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That is the answer. Do not cancel the h's
on the left side because h is not a factor
of the numerator but only a factor of one term
of the numerator.
Answer:
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Edwin
