5+4f=21

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Solution for 5+4f=21 equation:


5+4f=21

We simplify the equation to the form, which is simple to understand 
5+4f=21

We move all terms containing f to the left and all other terms to the right. 
+4f=+21-5

We simplify left and right side of the equation. 
+4f=+16

We divide both sides of the equation by 4 to get f. 
f=4

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