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1.45(f-4)-5.9=-1.55
We move all terms to the left:
1.45(f-4)-5.9-(-1.55)=0
We add all the numbers together, and all the variables
1.45(f-4)-4.35=0
We multiply parentheses
1.45f-5.8-4.35=0
We add all the numbers together, and all the variables
1.45f-10.15=0
We move all terms containing f to the left, all other terms to the right
1.45f=10.15
f=10.15/1.45
f=7
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