7(1+3f)=

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Solution for 7(1+3f)= equation: 


Simplifying
7(1 + 3f) = 0
(1 * 7 + 3f * 7) = 0
(7 + 21f) = 0

Solving
7 + 21f = 0

Solving for variable 'f'.

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

Add '-7' to each side of the equation.
7 + -7 + 21f = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 21f = 0 + -7
21f = 0 + -7

Combine like terms: 0 + -7 = -7
21f = -7

Divide each side by '21'.
f = -0.3333333333

Simplifying
f = -0.3333333333

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