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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