4(f-4)=-20

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


Simplifying
4(f + -4) = -20

Reorder the terms:
4(-4 + f) = -20
(-4 * 4 + f * 4) = -20
(-16 + 4f) = -20

Solving
-16 + 4f = -20

Solving for variable 'f'.

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

Add '16' to each side of the equation.
-16 + 16 + 4f = -20 + 16

Combine like terms: -16 + 16 = 0
0 + 4f = -20 + 16
4f = -20 + 16

Combine like terms: -20 + 16 = -4
4f = -4

Divide each side by '4'.
f = -1

Simplifying
f = -1

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