-6=3+f

Solution for -6=3+f equation:

Simplifying
-6 = 3 + f

Solving
-6 = 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.
-6 + -1f = 3 + f + -1f

Combine like terms: f + -1f = 0
-6 + -1f = 3 + 0
-6 + -1f = 3

Add '6' to each side of the equation.
-6 + 6 + -1f = 3 + 6

Combine like terms: -6 + 6 = 0
0 + -1f = 3 + 6
-1f = 3 + 6

Combine like terms: 3 + 6 = 9
-1f = 9

Divide each side by '-1'.
f = -9

Simplifying
f = -9