0=9(f+9)

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Solution for 0=9(f+9) equation: 


Simplifying
0 = 9(f + 9)

Reorder the terms:
0 = 9(9 + f)
0 = (9 * 9 + f * 9)
0 = (81 + 9f)

Solving
0 = 81 + 9f

Solving for variable 'f'.

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

Add '-9f' to each side of the equation.
0 + -9f = 81 + 9f + -9f
Remove the zero:
-9f = 81 + 9f + -9f

Combine like terms: 9f + -9f = 0
-9f = 81 + 0
-9f = 81

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

Simplifying
f = -9

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