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48=28-7(2+f)
We move all terms to the left:
48-(28-7(2+f))=0
We add all the numbers together, and all the variables
-(28-7(f+2))+48=0
We calculate terms in parentheses: -(28-7(f+2)), so:We get rid of parentheses
28-7(f+2)
determiningTheFunctionDomain -7(f+2)+28
We multiply parentheses
-7f-14+28
We add all the numbers together, and all the variables
-7f+14
Back to the equation:
-(-7f+14)
7f-14+48=0
We add all the numbers together, and all the variables
7f+34=0
We move all terms containing f to the left, all other terms to the right
7f=-34
f=-34/7
f=-4+6/7
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