21+(3-f)7=11

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Solution for 21+(3-f)7=11 equation:


21+(3-f)7=11

We simplify the equation to the form, which is simple to understand 
21+(3-f)7=11

Reorder the terms in parentheses
21+(+21-7f)=11

Remove unnecessary parentheses
+21+21-7f=+11

We move all terms containing f to the left and all other terms to the right. 
-7f=+11-21-21

We simplify left and right side of the equation. 
-7f=-31

We divide both sides of the equation by -7 to get f. 
f=4.4285714285714

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