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f(2)=4(2)+1
We simplify the equation to the form, which is simple to understand
f(2)=4(2)+1
Reorder the terms in parentheses
+(+2f)=4*(2)+1
Remove unnecessary parentheses
+2f=+4+*(+2+)+1
Reorder the terms in parentheses
+2f=+(+8)+1
Remove unnecessary parentheses
+2f=+8+1
We move all terms containing f to the left and all other terms to the right.
+2f=+8+1
We simplify left and right side of the equation.
+2f=+9
We divide both sides of the equation by 2 to get f.
f=4.5
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