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7.5F-4.1=6.7-4.5F
We move all terms to the left:
7.5F-4.1-(6.7-4.5F)=0
We add all the numbers together, and all the variables
7.5F-(-4.5F+6.7)-4.1=0
We get rid of parentheses
7.5F+4.5F-6.7-4.1=0
We add all the numbers together, and all the variables
12F-10.8=0
We move all terms containing F to the left, all other terms to the right
12F=10.8
F=10.8/12
F=3.85714285714/4.28571428571
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