2(f-9)=9

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Solution for 2(f-9)=9 equation: 


Simplifying
2(f + -9) = 9

Reorder the terms:
2(-9 + f) = 9
(-9 * 2 + f * 2) = 9
(-18 + 2f) = 9

Solving
-18 + 2f = 9

Solving for variable 'f'.

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

Add '18' to each side of the equation.
-18 + 18 + 2f = 9 + 18

Combine like terms: -18 + 18 = 0
0 + 2f = 9 + 18
2f = 9 + 18

Combine like terms: 9 + 18 = 27
2f = 27

Divide each side by '2'.
f = 13.5

Simplifying
f = 13.5

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