Solve for f
f=\frac{2}{5}=0.4
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f+19=11f+23-20f
The opposite of -19 is 19.
f+19=-9f+23
Combine 11f and -20f to get -9f.
f+19+9f=23
Add 9f to both sides.
10f+19=23
Combine f and 9f to get 10f.
10f=23-19
Subtract 19 from both sides.
10f=4
Subtract 19 from 23 to get 4.
f=\frac{4}{10}
Divide both sides by 10.
f=\frac{2}{5}
Reduce the fraction \frac{4}{10} to lowest terms by extracting and canceling out 2.
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