9-f=8

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Solution for 9-f=8 equation: 


Simplifying
9 + -1f = 8

Solving
9 + -1f = 8

Solving for variable 'f'.

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

Add '-9' to each side of the equation.
9 + -9 + -1f = 8 + -9

Combine like terms: 9 + -9 = 0
0 + -1f = 8 + -9
-1f = 8 + -9

Combine like terms: 8 + -9 = -1
-1f = -1

Divide each side by '-1'.
f = 1

Simplifying
f = 1

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