-12=3+f

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Solution for -12=3+f equation:


Simplifying
-12 = 3 + f

Solving
-12 = 3 + f

Solving for variable 'f'.

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

Add '-1f' to each side of the equation.
-12 + -1f = 3 + f + -1f

Combine like terms: f + -1f = 0
-12 + -1f = 3 + 0
-12 + -1f = 3

Add '12' to each side of the equation.
-12 + 12 + -1f = 3 + 12

Combine like terms: -12 + 12 = 0
0 + -1f = 3 + 12
-1f = 3 + 12

Combine like terms: 3 + 12 = 15
-1f = 15

Divide each side by '-1'.
f = -15

Simplifying
f = -15

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