3(3+7f)=

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Solution for 3(3+7f)= equation: 


Simplifying
3(3 + 7f) = 0
(3 * 3 + 7f * 3) = 0
(9 + 21f) = 0

Solving
9 + 21f = 0

Solving for variable 'f'.

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

Add '-9' to each side of the equation.
9 + -9 + 21f = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 21f = 0 + -9
21f = 0 + -9

Combine like terms: 0 + -9 = -9
21f = -9

Divide each side by '21'.
f = -0.4285714286

Simplifying
f = -0.4285714286

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