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0.1-0.02f=1.3-0.42f
We move all terms to the left:
0.1-0.02f-(1.3-0.42f)=0
We add all the numbers together, and all the variables
-0.02f-(-0.42f+1.3)+0.1=0
We get rid of parentheses
-0.02f+0.42f-1.3+0.1=0
We add all the numbers together, and all the variables
0.4f-1.2=0
We move all terms containing f to the left, all other terms to the right
0.4f=1.2
f=1.2/0.4
f=2+0.4/0.4
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