f-(-6)=9

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Solution for f-(-6)=9 equation: 


Simplifying
f + -1(-6) = 9

Multiply -1 * -6
f + 6 = 9

Reorder the terms:
6 + f = 9

Solving
6 + f = 9

Solving for variable 'f'.

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

Add '-6' to each side of the equation.
6 + -6 + f = 9 + -6

Combine like terms: 6 + -6 = 0
0 + f = 9 + -6
f = 9 + -6

Combine like terms: 9 + -6 = 3
f = 3

Simplifying
f = 3

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