3f-4=20

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Solution for 3f-4=20 equation: 


Simplifying
3f + -4 = 20

Reorder the terms:
-4 + 3f = 20

Solving
-4 + 3f = 20

Solving for variable 'f'.

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

Add '4' to each side of the equation.
-4 + 4 + 3f = 20 + 4

Combine like terms: -4 + 4 = 0
0 + 3f = 20 + 4
3f = 20 + 4

Combine like terms: 20 + 4 = 24
3f = 24

Divide each side by '3'.
f = 8

Simplifying
f = 8

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