19.83+81f+19.89=4.2f-19.56

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Solution for 19.83+81f+19.89=4.2f-19.56 equation: 



19.83+81f+19.89=4.2f-19.56

We move all terms to the left:

19.83+81f+19.89-(4.2f-19.56)=0

We add all the numbers together, and all the variables

81f-(4.2f-19.56)+39.72=0

We get rid of parentheses

81f-4.2f+19.56+39.72=0

We add all the numbers together, and all the variables

76.8f+59.28=0

We move all terms containing f to the left, all other terms to the right

76.8f=-59.28

f=-59.28/76.8

f=-46.3125/60

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