3f-9=9+6f

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Solution for 3f-9=9+6f equation:


Simplifying
3f + -9 = 9 + 6f

Reorder the terms:
-9 + 3f = 9 + 6f

Solving
-9 + 3f = 9 + 6f

Solving for variable 'f'.

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

Add '-6f' to each side of the equation.
-9 + 3f + -6f = 9 + 6f + -6f

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

Combine like terms: 6f + -6f = 0
-9 + -3f = 9 + 0
-9 + -3f = 9

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

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

Combine like terms: 9 + 9 = 18
-3f = 18

Divide each side by '-3'.
f = -6

Simplifying
f = -6

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