4-9=f

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Solution for 4-9=f equation:


Simplifying
4 + -9 = f

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

Solving
-5 = 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.
-5 + -1f = f + -1f

Combine like terms: f + -1f = 0
-5 + -1f = 0

Add '5' to each side of the equation.
-5 + 5 + -1f = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -1f = 0 + 5
-1f = 0 + 5

Combine like terms: 0 + 5 = 5
-1f = 5

Divide each side by '-1'.
f = -5

Simplifying
f = -5

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