27f-21=

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Solution for 27f-21= equation:


Simplifying
27f + -21 = 0

Reorder the terms:
-21 + 27f = 0

Solving
-21 + 27f = 0

Solving for variable 'f'.

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

Add '21' to each side of the equation.
-21 + 21 + 27f = 0 + 21

Combine like terms: -21 + 21 = 0
0 + 27f = 0 + 21
27f = 0 + 21

Combine like terms: 0 + 21 = 21
27f = 21

Divide each side by '27'.
f = 0.7777777778

Simplifying
f = 0.7777777778

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