2=2(f-9)-2

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


Simplifying
2 = 2(f + -9) + -2

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

Reorder the terms:
2 = -18 + -2 + 2f

Combine like terms: -18 + -2 = -20
2 = -20 + 2f

Solving
2 = -20 + 2f

Solving for variable 'f'.

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

Add '-2f' to each side of the equation.
2 + -2f = -20 + 2f + -2f

Combine like terms: 2f + -2f = 0
2 + -2f = -20 + 0
2 + -2f = -20

Add '-2' to each side of the equation.
2 + -2 + -2f = -20 + -2

Combine like terms: 2 + -2 = 0
0 + -2f = -20 + -2
-2f = -20 + -2

Combine like terms: -20 + -2 = -22
-2f = -22

Divide each side by '-2'.
f = 11

Simplifying
f = 11

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