6f-3=-21

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Solution for 6f-3=-21 equation: 


Simplifying
6f + -3 = -21

Reorder the terms:
-3 + 6f = -21

Solving
-3 + 6f = -21

Solving for variable 'f'.

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

Add '3' to each side of the equation.
-3 + 3 + 6f = -21 + 3

Combine like terms: -3 + 3 = 0
0 + 6f = -21 + 3
6f = -21 + 3

Combine like terms: -21 + 3 = -18
6f = -18

Divide each side by '6'.
f = -3

Simplifying
f = -3

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