-9-7f=12

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Solution for -9-7f=12 equation: 


Simplifying
-9 + -7f = 12

Solving
-9 + -7f = 12

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 + -7f = 12 + 9

Combine like terms: -9 + 9 = 0
0 + -7f = 12 + 9
-7f = 12 + 9

Combine like terms: 12 + 9 = 21
-7f = 21

Divide each side by '-7'.
f = -3

Simplifying
f = -3

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