-f=-9-2f

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Solution for -f=-9-2f equation:


Simplifying
-1f = -9 + -2f

Solving
-1f = -9 + -2f

Solving for variable 'f'.

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

Add '2f' to each side of the equation.
-1f + 2f = -9 + -2f + 2f

Combine like terms: -1f + 2f = 1f
1f = -9 + -2f + 2f

Combine like terms: -2f + 2f = 0
1f = -9 + 0
1f = -9

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

Simplifying
f = -9

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