-1(f-9)=5

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Solution for -1(f-9)=5 equation: 


Simplifying
-1(f + -9) = 5

Reorder the terms:
-1(-9 + f) = 5
(-9 * -1 + f * -1) = 5
(9 + -1f) = 5

Solving
9 + -1f = 5

Solving for variable 'f'.

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

Add '-9' to each side of the equation.
9 + -9 + -1f = 5 + -9

Combine like terms: 9 + -9 = 0
0 + -1f = 5 + -9
-1f = 5 + -9

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

Divide each side by '-1'.
f = 4

Simplifying
f = 4

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