7(9-4f)=20

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Solution for 7(9-4f)=20 equation: 


Simplifying
7(9 + -4f) = 20
(9 * 7 + -4f * 7) = 20
(63 + -28f) = 20

Solving
63 + -28f = 20

Solving for variable 'f'.

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

Add '-63' to each side of the equation.
63 + -63 + -28f = 20 + -63

Combine like terms: 63 + -63 = 0
0 + -28f = 20 + -63
-28f = 20 + -63

Combine like terms: 20 + -63 = -43
-28f = -43

Divide each side by '-28'.
f = 1.535714286

Simplifying
f = 1.535714286

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