f+2=20

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Solution for f+2=20 equation: 


Simplifying
f + 2 = 20

Reorder the terms:
2 + f = 20

Solving
2 + f = 20

Solving for variable 'f'.

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

Add '-2' to each side of the equation.
2 + -2 + f = 20 + -2

Combine like terms: 2 + -2 = 0
0 + f = 20 + -2
f = 20 + -2

Combine like terms: 20 + -2 = 18
f = 18

Simplifying
f = 18

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