-2f+9=-f

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


Simplifying
-2f + 9 = -1f

Reorder the terms:
9 + -2f = -1f

Solving
9 + -2f = -1f

Solving for variable 'f'.

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

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

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

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

Add '-9' to each side of the equation.
9 + -9 + -1f = 0 + -9

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

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

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

Simplifying
f = 9

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