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f(45)=4/3(45)-30
We simplify the equation to the form, which is simple to understand
f(45)=4/3(45)-30
Reorder the terms in parentheses
+(+45f)=+1.3333333333333*(45)-30
Remove unnecessary parentheses
+45f=+1.3333333333333+*(+45+)-30
Reorder the terms in parentheses
+45f=+(+60)-30
Remove unnecessary parentheses
+45f=+60-30
We move all terms containing f to the left and all other terms to the right.
+45f=+60-30
We simplify left and right side of the equation.
+45f=+30
We divide both sides of the equation by 45 to get f.
f=0.66666666666667
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