10+f=20

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Solution for 10+f=20 equation: 


Simplifying
10 + f = 20

Solving
10 + f = 20

Solving for variable 'f'.

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

Add '-10' to each side of the equation.
10 + -10 + f = 20 + -10

Combine like terms: 10 + -10 = 0
0 + f = 20 + -10
f = 20 + -10

Combine like terms: 20 + -10 = 10
f = 10

Simplifying
f = 10

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