-(f-1)=-3

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Solution for -(f-1)=-3 equation: 


Simplifying
-1(f + -1) = -3

Reorder the terms:
-1(-1 + f) = -3
(-1 * -1 + f * -1) = -3
(1 + -1f) = -3

Solving
1 + -1f = -3

Solving for variable 'f'.

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

Add '-1' to each side of the equation.
1 + -1 + -1f = -3 + -1

Combine like terms: 1 + -1 = 0
0 + -1f = -3 + -1
-1f = -3 + -1

Combine like terms: -3 + -1 = -4
-1f = -4

Divide each side by '-1'.
f = 4

Simplifying
f = 4

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