8f-21=3

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Solution for 8f-21=3 equation: 


Simplifying
8f + -21 = 3

Reorder the terms:
-21 + 8f = 3

Solving
-21 + 8f = 3

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 + 8f = 3 + 21

Combine like terms: -21 + 21 = 0
0 + 8f = 3 + 21
8f = 3 + 21

Combine like terms: 3 + 21 = 24
8f = 24

Divide each side by '8'.
f = 3

Simplifying
f = 3

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