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f(-2)=1/2-2-3
We move all terms to the left:
f(-2)-(1/2-2-3)=0
We add all the numbers together, and all the variables
f(-2)-(1/2-5)=0
We multiply parentheses
-2f-(1/2-5)=0
We get rid of parentheses
-2f+5-1/2=0
We multiply all the terms by the denominator
-2f*2-1+5*2=0
We add all the numbers together, and all the variables
-2f*2+9=0
Wy multiply elements
-4f+9=0
We move all terms containing f to the left, all other terms to the right
-4f=-9
f=-9/-4
f=2+1/4
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