8-3f=20

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Solution for 8-3f=20 equation:



8-3f=20
We move all terms to the left:
8-3f-(20)=0
We add all the numbers together, and all the variables
-3f-12=0
We move all terms containing f to the left, all other terms to the right
-3f=12
f=12/-3
f=-4

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