3(1+7f)=-18

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Solution for 3(1+7f)=-18 equation: 


Simplifying
3(1 + 7f) = -18
(1 * 3 + 7f * 3) = -18
(3 + 21f) = -18

Solving
3 + 21f = -18

Solving for variable 'f'.

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

Add '-3' to each side of the equation.
3 + -3 + 21f = -18 + -3

Combine like terms: 3 + -3 = 0
0 + 21f = -18 + -3
21f = -18 + -3

Combine like terms: -18 + -3 = -21
21f = -21

Divide each side by '21'.
f = -1

Simplifying
f = -1

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