-2f+20=-20-20+18f

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Solution for -2f+20=-20-20+18f equation:


Simplifying
-2f + 20 = -20 + -20 + 18f

Reorder the terms:
20 + -2f = -20 + -20 + 18f

Combine like terms: -20 + -20 = -40
20 + -2f = -40 + 18f

Solving
20 + -2f = -40 + 18f

Solving for variable 'f'.

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

Add '-18f' to each side of the equation.
20 + -2f + -18f = -40 + 18f + -18f

Combine like terms: -2f + -18f = -20f
20 + -20f = -40 + 18f + -18f

Combine like terms: 18f + -18f = 0
20 + -20f = -40 + 0
20 + -20f = -40

Add '-20' to each side of the equation.
20 + -20 + -20f = -40 + -20

Combine like terms: 20 + -20 = 0
0 + -20f = -40 + -20
-20f = -40 + -20

Combine like terms: -40 + -20 = -60
-20f = -60

Divide each side by '-20'.
f = 3

Simplifying
f = 3

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