-9f+3+6=81

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Solution for -9f+3+6=81 equation:


Simplifying
-9f + 3 + 6 = 81

Reorder the terms:
3 + 6 + -9f = 81

Combine like terms: 3 + 6 = 9
9 + -9f = 81

Solving
9 + -9f = 81

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 + -9f = 81 + -9

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

Combine like terms: 81 + -9 = 72
-9f = 72

Divide each side by '-9'.
f = -8

Simplifying
f = -8

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