18+f=91

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Solution for 18+f=91 equation: 


Simplifying
18 + f = 91

Solving
18 + f = 91

Solving for variable 'f'.

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

Add '-18' to each side of the equation.
18 + -18 + f = 91 + -18

Combine like terms: 18 + -18 = 0
0 + f = 91 + -18
f = 91 + -18

Combine like terms: 91 + -18 = 73
f = 73

Simplifying
f = 73

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