-2f=-f-4

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Solution for -2f=-f-4 equation:



-2f=-f-4
We move all terms to the left:
-2f-(-f-4)=0
We add all the numbers together, and all the variables
-2f-(-1f-4)=0
We get rid of parentheses
-2f+1f+4=0
We add all the numbers together, and all the variables
-1f+4=0
We move all terms containing f to the left, all other terms to the right
-f=-4
f=-4/-1
f=+4

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