2(f-4)=-20

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Solution for 2(f-4)=-20 equation: 


Simplifying
2(f + -4) = -20

Reorder the terms:
2(-4 + f) = -20
(-4 * 2 + f * 2) = -20
(-8 + 2f) = -20

Solving
-8 + 2f = -20

Solving for variable 'f'.

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

Add '8' to each side of the equation.
-8 + 8 + 2f = -20 + 8

Combine like terms: -8 + 8 = 0
0 + 2f = -20 + 8
2f = -20 + 8

Combine like terms: -20 + 8 = -12
2f = -12

Divide each side by '2'.
f = -6

Simplifying
f = -6

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