25-5f-12=28

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Solution for 25-5f-12=28 equation:


Simplifying
25 + -5f + -12 = 28

Reorder the terms:
25 + -12 + -5f = 28

Combine like terms: 25 + -12 = 13
13 + -5f = 28

Solving
13 + -5f = 28

Solving for variable 'f'.

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

Add '-13' to each side of the equation.
13 + -13 + -5f = 28 + -13

Combine like terms: 13 + -13 = 0
0 + -5f = 28 + -13
-5f = 28 + -13

Combine like terms: 28 + -13 = 15
-5f = 15

Divide each side by '-5'.
f = -3

Simplifying
f = -3

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