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f(9)=2/9(9)-9/2
We simplify the equation to the form, which is simple to understand
f(9)=2/9(9)-9/2
Simplifying:
f*(9)=0.222222222222*(9)-9/2
Simplifying:
f*(9)=0.222222222222*(9)-4.5
Reorder the terms in parentheses
+(+9f)=0.222222222222*(9)-4.5
Remove unnecessary parentheses
+9f=0.222222222222+*(+9+)-4.5
Reorder the terms in parentheses
+9f=+(+2)-4.5
Remove unnecessary parentheses
+9f=+2-4.5
We move all terms containing f to the left and all other terms to the right.
+9f=+2-4.5
We simplify left and right side of the equation.
+9f=-2.5
We divide both sides of the equation by 9 to get f.
f=-0.277777777778
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