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5.8f-19.13=2.55-4.04+7.9f
We move all terms to the left:
5.8f-19.13-(2.55-4.04+7.9f)=0
We add all the numbers together, and all the variables
5.8f-(7.9f-1.49)-19.13=0
We get rid of parentheses
5.8f-7.9f+1.49-19.13=0
We add all the numbers together, and all the variables
-2.1f-17.64=0
We move all terms containing f to the left, all other terms to the right
-2.1f=17.64
f=17.64/-2.1
f=-8+0.84/2.1
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