Question 265079
Solve for p
{{{1/p+1/q=1/f}}}
the common denominator is pqf, multiply each term by pqf, this gets rid of the denominators, results:
qf + pf = pq
:
Subtract qf from both sides
pf = pq - qf
:
subtract pq from both sides
pf - pq = -qf
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Factor out p on the right
p(f-q) = -qf
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Divide both sides by (f-q), results
p = {{{-(qf)/(f-q)}}}
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Did this make sense to you now?