3f-5+9-f=-4

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Solution for 3f-5+9-f=-4 equation:


Simplifying
3f + -5 + 9 + -1f = -4

Reorder the terms:
-5 + 9 + 3f + -1f = -4

Combine like terms: -5 + 9 = 4
4 + 3f + -1f = -4

Combine like terms: 3f + -1f = 2f
4 + 2f = -4

Solving
4 + 2f = -4

Solving for variable 'f'.

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

Add '-4' to each side of the equation.
4 + -4 + 2f = -4 + -4

Combine like terms: 4 + -4 = 0
0 + 2f = -4 + -4
2f = -4 + -4

Combine like terms: -4 + -4 = -8
2f = -8

Divide each side by '2'.
f = -4

Simplifying
f = -4

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