25+-2f=-21

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Solution for 25+-2f=-21 equation: 


Simplifying
25 + -2f = -21

Solving
25 + -2f = -21

Solving for variable 'f'.

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

Add '-25' to each side of the equation.
25 + -25 + -2f = -21 + -25

Combine like terms: 25 + -25 = 0
0 + -2f = -21 + -25
-2f = -21 + -25

Combine like terms: -21 + -25 = -46
-2f = -46

Divide each side by '-2'.
f = 23

Simplifying
f = 23

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