4(1-7f)=20

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Solution for 4(1-7f)=20 equation: 


Simplifying
4(1 + -7f) = 20
(1 * 4 + -7f * 4) = 20
(4 + -28f) = 20

Solving
4 + -28f = 20

Solving for variable 'f'.

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

Add '-4' to each side of the equation.
4 + -4 + -28f = 20 + -4

Combine like terms: 4 + -4 = 0
0 + -28f = 20 + -4
-28f = 20 + -4

Combine like terms: 20 + -4 = 16
-28f = 16

Divide each side by '-28'.
f = -0.5714285714

Simplifying
f = -0.5714285714

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