20=-3+7(f+6)

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Solution for 20=-3+7(f+6) equation:


Simplifying
20 = -3 + 7(f + 6)

Reorder the terms:
20 = -3 + 7(6 + f)
20 = -3 + (6 * 7 + f * 7)
20 = -3 + (42 + 7f)

Combine like terms: -3 + 42 = 39
20 = 39 + 7f

Solving
20 = 39 + 7f

Solving for variable 'f'.

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

Add '-7f' to each side of the equation.
20 + -7f = 39 + 7f + -7f

Combine like terms: 7f + -7f = 0
20 + -7f = 39 + 0
20 + -7f = 39

Add '-20' to each side of the equation.
20 + -20 + -7f = 39 + -20

Combine like terms: 20 + -20 = 0
0 + -7f = 39 + -20
-7f = 39 + -20

Combine like terms: 39 + -20 = 19
-7f = 19

Divide each side by '-7'.
f = -2.714285714

Simplifying
f = -2.714285714

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