9f+12f=21

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Solution for 9f+12f=21 equation: 


Simplifying
9f + 12f = 21

Combine like terms: 9f + 12f = 21f
21f = 21

Solving
21f = 21

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Divide each side by '21'.
f = 1

Simplifying
f = 1

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