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f/4=-6.6
We move all terms to the left:
f/4-(-6.6)=0
We add all the numbers together, and all the variables
f/4+6.6=0
We multiply all the terms by the denominator
f+(6.6)*4=0
We add all the numbers together, and all the variables
f+26.4=0
We move all terms containing f to the left, all other terms to the right
f=-26.4
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