-3=9+f

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Solution for -3=9+f equation:


Simplifying
-3 = 9 + f

Solving
-3 = 9 + 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.
-3 + -1f = 9 + f + -1f

Combine like terms: f + -1f = 0
-3 + -1f = 9 + 0
-3 + -1f = 9

Add '3' to each side of the equation.
-3 + 3 + -1f = 9 + 3

Combine like terms: -3 + 3 = 0
0 + -1f = 9 + 3
-1f = 9 + 3

Combine like terms: 9 + 3 = 12
-1f = 12

Divide each side by '-1'.
f = -12

Simplifying
f = -12

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