9(7f+2)=-20+4f

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Solution for 9(7f+2)=-20+4f equation:


Simplifying
9(7f + 2) = -20 + 4f

Reorder the terms:
9(2 + 7f) = -20 + 4f
(2 * 9 + 7f * 9) = -20 + 4f
(18 + 63f) = -20 + 4f

Solving
18 + 63f = -20 + 4f

Solving for variable 'f'.

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

Add '-4f' to each side of the equation.
18 + 63f + -4f = -20 + 4f + -4f

Combine like terms: 63f + -4f = 59f
18 + 59f = -20 + 4f + -4f

Combine like terms: 4f + -4f = 0
18 + 59f = -20 + 0
18 + 59f = -20

Add '-18' to each side of the equation.
18 + -18 + 59f = -20 + -18

Combine like terms: 18 + -18 = 0
0 + 59f = -20 + -18
59f = -20 + -18

Combine like terms: -20 + -18 = -38
59f = -38

Divide each side by '59'.
f = -0.6440677966

Simplifying
f = -0.6440677966

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