5(f-4)=20

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Solution for 5(f-4)=20 equation: 


Simplifying
5(f + -4) = 20

Reorder the terms:
5(-4 + f) = 20
(-4 * 5 + f * 5) = 20
(-20 + 5f) = 20

Solving
-20 + 5f = 20

Solving for variable 'f'.

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

Add '20' to each side of the equation.
-20 + 20 + 5f = 20 + 20

Combine like terms: -20 + 20 = 0
0 + 5f = 20 + 20
5f = 20 + 20

Combine like terms: 20 + 20 = 40
5f = 40

Divide each side by '5'.
f = 8

Simplifying
f = 8

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