f-40=13

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Solution for f-40=13 equation: 


Simplifying
f + -40 = 13

Reorder the terms:
-40 + f = 13

Solving
-40 + f = 13

Solving for variable 'f'.

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

Add '40' to each side of the equation.
-40 + 40 + f = 13 + 40

Combine like terms: -40 + 40 = 0
0 + f = 13 + 40
f = 13 + 40

Combine like terms: 13 + 40 = 53
f = 53

Simplifying
f = 53

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