-20=-8-f-f

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Solution for -20=-8-f-f equation:


Simplifying
-20 = -8 + -1f + -1f

Combine like terms: -1f + -1f = -2f
-20 = -8 + -2f

Solving
-20 = -8 + -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.
-20 + 2f = -8 + -2f + 2f

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

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

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

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

Divide each side by '2'.
f = 6

Simplifying
f = 6

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