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(-3)=-0.8F+2F
We move all terms to the left:
(-3)-(-0.8F+2F)=0
We add all the numbers together, and all the variables
-(+1.2F)+(-3)=0
We add all the numbers together, and all the variables
-(+1.2F)-3=0
We get rid of parentheses
-1.2F-3=0
We move all terms containing F to the left, all other terms to the right
-1.2F=3
F=3/-1.2
F=-2+0.6/1.2
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