Question

Given F=9/5C+32. Solve for C.

Answer 1

a) subtract 32
b) multiply by \(\frac{5}{9}\)

Answer 2

why would you multiply by 5/9 ?

Answer 3

because when you subtract \(32\) you get
\[F-32=\frac{9}{5}C\] and you don't want \(\frac{9}{5}C\) you want \(C\)

Answer 4

so if you multiply by the reciprocal of \(\frac{9}{5}\) namely \(\frac{5}{9}\) you get \(C\)

Answer 5

so in order to get rid of the fraction 9/5 i would have to multiply by the reciprocal?

Answer 6

yes

Answer 7

because
\[\frac{5}{9}\times \frac{9}{5}=1\]

Answer 8

1. Subtract 32 from both sides
2. Multiply both sides by 5.
3. Divide both sides by 9.

and you get it.